I suppose it comes back to this crazy religion (Ayn Rand et. al.) that looking after yourself at the expense of others is the only way to make the world stable. It's very convenient for people who are being selfish or making things worse to agree with such crackpot ideas.
Interesting down voting here, any reasons you care to give as to why you disagree? I think the above is a pretty common belief from economics, right wing thinking and Ayn Rand amoungst others.