@Akuperma
I believe you may be conflating ‘private’ and ‘professional’ in regards to pilots.
I regularly fly private (NetJets or charter). The Pilots are definitely professional, but operate private planes. This is different form the recreational pilot who pilots small prop planes for joy.
Most of the charter pilots I’ve encountered in the USA have many years of experience and like the pay scale compared to those of the regional jets used by many airlines.
As for maintenance, many airlines cut corners and outsource maintenance to 3rd world providers. The US charter fleet is well maintained, many by the mfg (such as Embraer in Florida).