For the first time ever, I have not seen that stereotype within a large group but only in a very high upscale private facility that is run by Paul Keck, has 3 of the best doctors in the country (literally ranked that), and the rest of the staff including psychiatrists, psychologists, nurses, and social workers were hand-picked as the best ones in the country or the local area.
I've seen lazy and bad doctors in every field, but from my own perspective and biased opinions, lazy is a bit more in psychiatry. E.g. I've never seen anyone ever want to go into surgery to have an easy life, nor anyone have that opinion go into IM, Ob-Gyn, or FP. I did, however, see quite a few residents specifically go into psychiatry so they could have easier calls. That does not diminish the legitimacy of the field. Bad is pretty much equally prevalent in all fields. I've seen plenty of bad neurologists (unfortunately one is the consultant I have to deal with at my hospital!), surgeons, Ob-Gyn doctors, PCPs, etc. I wouldn't call them lazy but I would call them bad.
Further, I have no problem with someone wanting an easier life, just don't do bad work. You want to work 30 hours a week? Do it. More power to you, just do good work during those 30 hours. I'm not defining lazy as that. I'm defining lazy as someone who had no passion to be in the field to begin with and wanting an easier time, and doing poor work. At least a guy who doesn't want to work much, but does do good work knows what he wants and doesn't push a bad service.
If you're not seeing it, then you might be in a very good immediate surrounding.