Of course, and you are right on many/most accounts.
However, it is worth mentioning that it is definitely a dangerous game to play, even if the government doesn’t do anything.
Government contracting world is pretty cut throat and all it takes is a competitor, a partner, or an employee catching wind of the foul play and you make your company pretty vulnerable to a few things:
1) extortion for work share (e.g., a partner company threatening to out you to the contracting officer if they don’t give more work share % or some other form of monetary compensation)
2) A competitor contesting the contract award due to the awarded company not meeting the set aside requirements. This can be very costly and lead to the government being forced to look into things more thoroughly. It’s also public record and could seriously damage a company’s reputation in perpetuity.
3) A company employee filing a qui tam suit under the False Claims Act. This can lead to at best, a costly settlement, and at worse, repaying the government even after the work has already been performed.
It’s definitely not a route I recommend taking!