The lie here is that many companies have as much as 75% of compensation in non-salary items (like equity, bonus).
So folks who do not know any better could still work for 1/4 the market rate.
So folks who do not know any better could still work for 1/4 the market rate.
They may not address price transparency for people who receive equity compensation, but it is still a great start to help those at the bottom.
But alas making it mandatory is not the way to go.
This implies some do. So it didn't answer the question.