Core properties of well functioning markets is information symmetry and transparency. I don't think this describes a lot of consumer goods. Even consumers who want to do their research will find that there isn't enough information available.

Personally, I feel the responsibility of government in a capitalist system, is ensuring the free market is actually a free market. I'd love it if there was a government agency charged with improving the above mentioned problem of information asymmetry and lacking transparency. For example, when I buy a fridge I'm happy to spend more now, if it means I spend less over the lifetime of the item, but determining the cost per year for every fridge on the market is a huge task for an individual.