The French Revolution was strangled in its crib while it's mass killing was still accelerating, and it's leaders themselves killed en massé by counterrevolutionaries; it wasn't in business very long for that reason, a fact that future revolutionaries were keenly aware of and eager to avoid.

The stated ideology of the 1790s Paris Commune might be more attractive to modern democratic capitalists than that of the Bolsheviks, et al.,, but the main reason that the former has less of a history of violence than the latter is that they lost very early on in their program of exterminating an ever-expanding list of perceived enemies of the revolution, not some greater humanitarianism.