Alaska Native set asides are a low single digit percentage of all federal contracts. Small business set asides are a much larger percentage, and that's just as much of a scam since many times they sub work to large businesses.

Any big contract is going to have subcontractors.  The government sets aside contracts for native corps and small business to encourage growth and business development.  The fact that they then sub work out to locals is not a scandal, its expected.  Without set asides, nearly all of the contracts would go to huge defense contractors who can give the best pricing and they would still sub it to locals.