To enter in a voluntary contract in wich one party works and the other party pays is not sufficient reason to declare that the working party had its fair share.

People need to be educated to ask for equity from every company they work, and society needs to normalise giving every worker in a company a proportional stake.

The wealth creation you talk about is true, the problem is that people creating that wealth are not equally rewarded. Signing a contract makes it legal, not right.