The spectacular growth of the U.S. economy and the ensuing inequalities in living conditions and incomes confounded many Americans. But as industrial capitalism overtook the nation, it achieved political protections.
So I'm guessing, the wealthy politicians and upper class molded the rules so that it'd be convenient for them. As anyone does with money, even in today's current events. Even if someone were to get caught, they can easily buy themselves out unlike the minories.