I think that kind of gets to my point though. Politicians follow what gets them elected and I think that's an argument that non-elite, non-special interest movements have made change.
Some rightfully point out below that there's always politician BS lip service, saying something during the election and not following through or doing the opposite.
But on this issue both 'sides' show the point I'm trying to make. Public sentiment, not industrial lobbyists, drove anti-queer policy (though to be fair with Prop 8 you could call the mormon's monied elites since they evidently have a ginormous secretive endowment controlled by a few white guys).
And then in just a few years popular opinion turned, laws/policy followed at a lightning fast pace. Because politicians want to get elected. Pretty amazing. I distinctly remembering talking about marrying my at the time long term boyfriend, my parents didn't realize I could get married like a year after SCOTUS opinion & they are very supportive.
i think and hope that there are many examples like this, which parent's study seems to show doesn't exist, at least affecting business/tax/money policy