Supervision: it's grand and glorious if you're one of the supervisors, privileged to impose your viewpoints on the conduct of affairs, never mind competing factors such as stagnation instead of vitality, timidity instead of confidence, as consequences of "oversight," Big Government-style.
A big disadvantage of the economic whatever-it-is pertains to the public attention it drains from crucial concerns such as random outbreaks of the political/governmental desire to kick and shove others around -- in the name, naturally, of the Greater Good.
Friends, it just doesn't work. Government, for one thing, can no more know the right way to reward and encourage corporate talent than a butterfly can support an elephant on its wings. The right level of compensation, nearly every time -- the exceptions would account only for corrupt behavior -- is whatever seems right to the parties chiefly involved.
It's not a moral question, as so many in the media and on Capitol Hill seem to assert in their expulsions of smoke and flame. If the recipient of a rich pay package blows it, tough for him, and for his company. Yes, it's hurtful. Yet such are the risks and pitfalls exhibited by life and competitive marketplaces, assuming we take the time to notice.
Better on the whole to risk than to hang back. Better to reward successful risk-taking than penalize it. Are our congresspersons so dull they can't see or understand something so obvious? Heaven forbid. Bet you could find three, maybe four, on Capitol Hill to whom you might safely entrust the running of a major business enterprise.