Here's something you can do, to actually facilitate these games getting some space:
The Steam Summer Sale is coming up, how about you look through games with less than 20 reviews, buy a handful of them (a lot of them are pretty cheap, even at full price) and maybe even write some positive reviews of those you've enjoyed? You have no idea how hard it is to get people to not only buy a copy of your small game, but to also have them say something about it, be it either on social media, or via leaving a review. However doing these things does so much in terms of potentially getting some extra attention and money.
Obviously this won't fix the general problem, but for that to happen Capitalism would have to go and that requires a lot more work.
