I wonder how these managers sleep at night. Anyways, people choose to do what they choose to do (me included). I simply wanted to understand how I should react

I wonder how these managers sleep at night. Anyways, people choose to do what they choose to do (me included). I simply wanted to understand how I should react and adapt (if I do end up taking my next job in tech) Any kind of brag is certainly not my personality. If I do something I simply do it and end up picking up the next thing. Turns out I need to "announce it and be happy about it" as well.