So, I don't know mark - but lets assume the personality he was portrayed with in the first portion of the movie were fairly accurate; He was portrayed as a high

So, I don't know mark - but lets assume the personality he was portrayed with in the first portion of the movie were fairly accurate; He was portrayed as a highly intelligent, social misfit with rather pronounced aspergers and extreme ambition to climb the social ladder. Further he was depicted as having a certain level of jealousy for his buddies getting tapped by the social group he was interested in, in addition to already holding the fraternity the twins belonged to with reverence. So, assuming these factors were true - there i no indication that he made any attempt to determine what sort of value the twins really could have provided to the site. Clearly, history has shown that he was able to pull it off without them - yet at the same time you could guess that the twins would have been able to easily back the creation and provide high-level connections for the site. So, it would seem apparent that truly this was a greed/control play on marks part. There is no way he would have believed that any material resources the site would have needed could not have been provided for - but rather that any control of the idea and company he would have to give up was unacceptable. This is understandable, but it further just proves out the fact that he agreed to help them upon the first meeting, had a clear spark of inspiration on what needed to be done to create it and only dragged the twins along to keep them at bay while he executed on the idea. Pretty slimy.