I don't believe in doing what is best for everyone. My argument is definitely in support of people pursuing there self interests. If I have the money to buy a yacht and I want one I'm gonna buy one. You would say that shouldn't be allowed because it's bad for the group. I should donate all extra funds not needed for the bare necessities as that really benefits everyone. No one should drive cars. Public transport should be used exclusively. You should not be allowed to have sex unless the government decides you reproducing would be beneficial for the society. A communist or even a socialist society is not where I wanna live and people will say "ooh we're no where close" but it's a slippery slope.