"Evidence- all new drugs to treat illness & diseases. The very thing on which we are communicating, the internet."
Are you actually going to prove that "all new drugs" and "the internet" were created only because their creators were motivated by profit and no other motivations to help others?
I also already explained that even selfish people would still be motivated to make innovations that benefit all of society since they, being a part of society, would also benefit as well.