The reality is that there are plenty of options for working in the OR, ER, ICU as a NP. Is the PA route for these roles more straight forward? Maybe. Are there more opportunities for PAs? Depends on location. But I see NPs working in these areas all the time. I also agree that nursing is an almost ridiculously viable field for anyone with the slightest business acumen. 50% of RNs have only an ADN degree, so coming into the field with a graduate degree already puts you well ahead. Male nurses especially have an easier time moving up. People who come into nursing well educated and with a plan for getting to the top seem to be very successful, from what I've seen around here (my experience is pretty limited to the bay area, so keep that in mind).
I don't know that there is anything inately biased involved in males moving up quickly (when it happens). When I see females making thier way into upper levels, its because they share a lot of the same qualities that many of the successful males posess. It takes a certain degree of agressiveness (or maybe better termed as determination) to catch the eye of management. A lot of the folks who feel overlooked are actually in denial about thier unwillingness to modify thier approach to suit the wants of the bosses. If the Romans want a polished, diplomatic, management supporting go-getter, then do as the Romans do and refine yourself. It can be hard for a lot of folks, and especially many females, to balance responsibilities to thier families, manage to stay late, take on additional responsibilites at work, and fill in for folks who are absent. Those are things that get you noticed, and are things that clash with being a guilt free mom, wife (or live-in girlfriend), and all around home-making bad A. I also think males are a little more bold with thier approach to networking as well. When it came to the job search after RN school finished, I had been talking to the folks in charge about my goals for 2 YEARS, so it was no surprise when I showed up to the unit I wanted to be on months ahead of time asking for a job. Every clinical, at every facility I rotated through, I went to any manager I could track down and introduced myself and told them who had been training me that day (pretty transparent that I was trying to promote myself, but it meant that I at least stood out... and led to job offers). I even stepped into an open office door that I walked by of a nursing department on a unit I didn't even train on and said "Hi, I'm PAMAC, and I've been training on 5th floor with Toby... and I just want to compliment you on the nurses on the units here... this has been a great day for me". Its bold, and is basically a sales cold call, but it works to get you ahead (theres a way to do it and not creep people out too). And you never know who is going to come through for you. The seasoned CNA that you treated with respect and supported at every opportunity just might have the ear of the lady who you want to be your boss. Success isnt an action, its an attitude. You hear people talking about how they filled out 40 applications and have no takers. I don't fill out an application until I walk in and basically have a job lined up, or else have someone in the organization say "lets get your application in and see what we can do about getting you on". This is how my wife has been rolling for the last year or so as well, and it means that we get work... and we get it where we want to with minor compromise.
So in a nutshell, if I want something that is feasable and realistic to even a slight degree, I plan to obtain it. I'm not average. Its not that I'm awesome (I'm certainly not), but I am good at recognizing my weaknesses, and that is what gives me an edge. When my grades sucked, or I was painfully shy, or I didn't have any decent contacts in the medical field, I stepped out of denial, faced some inconvenient truths, and fixed it. Women in nursing can do this too, but many don't. If it seems like guys are busting into leadership roles, it might be because guys got into that mindset in the first place and thats how they got into nursing. The males who didn't have enough of the right stuff (or were too insecure) to take a leap into a female dominated realm self selected themselves out.
It takes finesse to get along in a minefield like nursing, especially if you are a guy. I also think that as a male, I'm a bit more guarded, and therefore less exposed than many of the females around me... and that helps mold someone who is a bit more appealing as managerial material. Think about it... being male and married, I'm pretty much programmed by default to avoid some of the pitfalls that come with socializing/fraternizing with the female staff. That leaves me out of the loop in some ways, but also tamps down the familiarization that can subtlely scuttle career plans. I think the majority of my peers show up to work as professionals, but because many males walk a bit more of a tightrope to avoid being seen as flirty (or worse), it provides a bit of distance from conversations about drama. This has the effect of insulating you from being involved in it even by association from merely hearing about it. And that makes it easier to stay above the fray... even if it really only seems that you are. But in reality, all of my supervisors are female, so if there is a gender bias towards males, I've yet to harness the benefit. I look at other units and see some of the same elements that I mentioned, though.