The boss/owner doesn't stake a claim. You are free to quit your job and take up employment elsewhere, because you own your own labour. You are free to be unemployed and live off welfare too.
The boss pays you. You accept that payment voluntarily. You don't have to accept it and you can negotiate for your share. That's why Litecoin for example was started by a former Google employee who figured he can be better compensated by not working for the Gulag.
I am also a shareholder and so can you be if you choose to become one.
The boss/owner stakes the first claim, cops get theirs after he takes his.
I can go down the street and get the same deal, otherwise if that business paid more than the going rate they couldn't compete.
What is voluntary about live under a bridge or be exploited?
Not thanks, i don't need a share of the exploitation.