> Their robber baron behavior reveals their true values and the reality of capitalism.

This is rather reductionist… By your same logic I could say that Stalin and Mao revealed the true values and reality of communism.

Let’s not elaborate on it further though and just leave this as a simple argument. Free market capitalism has led us to the most prosperous, peaceful, and advanced society humanity has ever ventured to create. Communism threatened that prosperity and peace with atrocities on a scale that exists beyond human comprehension. Capitalism, even with all of its faults, is the obvious choice.