Well, libertarianism does generally support private property rights. The mistake made by many is to assume that private property rights means greedy hoarding, and that isn't the case at all. While Objectivism extols greed, if you look around a bit more, you can find libertarians who are quite interested in charity work and helping the less fortunate. There are even folks who think that Christian principles of selflessness are more in line with libertarian ideas than socialist ideas.