His share price might then collapse, and he has a substantial financial stake in himself.
It's the same as any company - all the staff could refuse to cooperate and walk out, and it would be worth nothing overnight.
Sounds to me like he doesn't have the power to decide for himself.
Here's another quote that makes me think he seriously only gave himself nonvoting shares:
“shareholders don't dictate what's tabled. We can only vote on what's proposed, the implication being that K5M is fine with either outcome.”
He's not a literal slave.
I do think that as this experiment goes on and the Kmikeym stock price goes up, the stakes increase and it becomes harder to back out. Imagine: an organized crime syndicate could buy $1 million in Kmikeym stock to launder money – if he does anything that adversely influences Kmikeym share price, he might be in for a world of hurt. Or another scenario: his parents might be so convinced in their son's success that they mortgage their house to pay for shares in Kmikeym. If he screws up, his parents lose their home.
this is kind of a neat idea, an investment in future potential writ small.