Yeah... no.
Evolution shows us that organisms do grow to the limits of their environment. A "capitalist" system is no different. Making thinly-veiled religious statements about the evils of capitalism means rhetoric is more important to you than understanding.
Edit: for the nay-sayers, who seem to have missed my point: These behaviors aren't a result of capitalism. Blaming capitalism, or using ideological rehetoric, is wrong. These behaviors are a result of reality. Of evolution. Of the Dariwnian struggle for existence.
Blaming capitalism for these behaviors makes no more sense than blaming capitalism for a disease like malaria. Malaria was around long before capitalism, or even people, existed.