Did anyone ever stop Marcus Licinius Crassus from destroying the Roman Republic? (patron of Julius Caesar and Romes richest man ever).
Crassus amasses so much wealth because Caesar helped him.
And Crassus was the rich man who was monopolizing all of Rome with his slave firefighters + real estate scheme. When the going got tough, they seekwd power from the rich guy, no one was stopping Crassus.
Caesar was killed by the same people (hardline conservative ultra-wealthy 'Optimate' families/factions) who also brutally murdered the tribune of the plebs (person appointed to beg the ultra-wealthy for favorable legislation) and his supporters not once but twice. He was killed for the same reason too - land redistribution, limits on slave labor. That was called 'tyranny' by the elites.
Crassus was wealthy before Caesar and died before Caesar took power. This kind of politicking was just a necessary evil in the Roman Republic - which always was an oligarch-controlled plutocracy and never a true democracy as we know it today (e.g. Athens). It was 'pay to play', sponsorship of the ultra-wealthy was not optional.