I think the 70's gas rationing in the US was another example of where price controls absolutely stomped on consumers.
I'm not sure if there are any examples to the contrary, but there are surely people who benefit as, say, 'winning' a rent controlled apartment (but I wouldn't necessarily consider that those people were ever actually consumers in the market to begin with).
I think an evolution of government is necessary, likely where a relatively blank slate is needed to flush out the influence of regulatory capture - and most important where each political party comes forward to present their actual party platform that will update/remove what existing laws in place - basically a version controlled repo like Git facilitates. This way there will be an exact breakdown, exactly in the place of existing laws for the layperson et al to go through it in an easy UI/UX; along with commentary and conversation - similar to how the Genius.com allowing line-by-line threaded commentary.