Plutocracy is an equilibrium.

Once who plutocrats pay determines who gets to be affluent—indirectly of course, via sinecures or lobbyists on "philanthropic research organizations"—politicians have to legalize getting paid (as the Supreme Court just did for "gratuities") or be left behind.

Govt action becomes a market good, like all market goods, subject to appropri8n at will by plutocrats, except when other plutocrats bid in competition.

Plutocrats share an interest in entrenching plutocracy.