Congress regulates our retail/service prices and not much more. The post office is forced to keep prices lower than competitors, but we operate only on revenue and zero taxes, and not allowed to make a profit. Best thing they could do would be to let the post office be competitive in the market if you want to see wages rise. Although they're pretty good, I'm only five years in and make 70k per year plus benefits and 5% matching for the gov equivalent of a 401k.