We aren't slaves, we are partners. Nor are we all startup leaders.
We have ideas, we don't necessarily have the time, money or even ability to capitalize on them directly as a business.
We also have no need to come up with ideas which have direct application right now. We can come up with "here's a good idea (maybe)"... stuff, and it really doesn't matter so much if it doesn't pan out.
We still get the bonus, the credit, and the feeling that our idea got recorded and acknowledged.
It's making lots of small bets to get ahead, rather than go for broke on one big one.