As somebody who is former management - for me it isn't worth the hassle.
It comes with usually a better, more consistent schedule (albiet usually more hours and often always being oncall even if unofficial)
a lot of people do it for their ego (not necessarily a bad thing, but they define themselves by their work vs other aspects of their life)
More money - generally I see 5-8% for each step up the ladder (staff rph, clinic spec, supervisor, manager, director).
Depending on the position, often a larger annual bonus.
I left mgmt for some of the reasons others stated.
I HATE complainers, you can only take it so much, and you quickly realize there are some people you just never will make happy, just too self-entitled to understand how the world works. My direct reports (I had 29 of them) all told me (as they were complaining) that I was the only manager "who got it". Now sometimes they had legit complaints, but it was often lost in all of the noise. Then when those above me made me pass something down I disagreed with, I could just say "I don't agree with this, but this is what we are doing".
Now that I left, I work less hours, and when I walk out the door, work is done, no calling me at home, no texts, etc. I make more per hour than the two (and possibly three) people directly above me (less hours, plus night shift dif, plus I have more years experience than the three of them combined).
Middle mgmt sucks, if you can deal with it for a few years, upper mgmt definitely has its perks, but most people don't necessarily make it.
And lastly, I simply missed pt care, I missed doing what I went to school for.