That can be a big money saver for the employer.
Even if one wants to attract big money, one cannot do it because that would crush the opposition and be against the rules.
That is where the big money may be.
There is big money in it, and more money in it every year.
Nobody dared do anything because big money people threaten to take people to court if they dare to question what is going on.
Because of the big money involved, the vacuum will be filled by criminal elements.
We are talking about some very big money.
There is no need to explain in detail how big money can be made.