> Commercial healthcare and education seem to really bring about the worst aspects of a market economy, in some countries. Not sure where it works well, it maybe somewhere.

Mostly, IMO, because they're not free markets. Healthcare actively fights price transparency, and is largely driven by fixed demand and artificially constrained supply. College costs can only do what they do because the whole thing is financed by grants and uniquely binding loans pushed on students who barely understand what they're getting into. If we could force the whole thing into an actual free market, it'd vastly improve the situation.