Numbers 1 and 2 are connected. If the company goes under, then the team loses their jobs. If the company constantly screws over the employees, they'll end up with lower talent candidates and higher turnover. There has to be a balance. This isn't unique to tech, but probably more obvious there due to the job market strength for so long.
I was just talking to a friend of mine, yesterday, who used to work for a mob outfit.
He said that mobsters are surprisingly good managers.
I guess if you manage folks that, by definition, don't like rules, and can kill you, if you piss them off too much, you need to have a balanced and clever approach.