I’m 42 and it has worked out pretty well so far, honestly.
I joined the military, got good reviews (called “marks” for us), and tested well when I tried. Now I make good money, have the support of a lot of people in different departments and largely able to work on the projects I want, have gotten my #1 pick for station every time I have had to transfer, and will be retiring in 4 years with a bunch of ties to the community to keep me involved with things I enjoy after.
I get a lot of this is luck, and privilege (e.g. not everybody can join the military), and other factors. And regardless how hard I worked, many things ended up being popularity contests, so I missed some opportunties that way. But at no point did I feel like being nice and hardworking worked anything but in my own favor.
In college I had a guy friend (I’m a guy, both of us straight) who I’d regularly go to breakfast with, and he always paid because I was very poor, he made plenty, and he wanted company for breakfast. I regularly tried to pay and he waved me off. I think he knew that if we went back and forth, we’d go to breakfast a lot less because I wouldn’t be able to afford it.
Maybe that’s what’s going on here.