Probably 90% of the lonely men that spend too much time on the internet, are motivated by sex. But for the at large population, many things motivate them, not just sex.
Or maybe you're sitting on some fool-proof research you have yet to share, that proves this theory of yours?
Right. It's like saying "90% of what people who can't make rent do is motivated by getting money", or "over 90% of what starving people do is motivated by getting food".
There's a hierarchy of needs, and met needs are not that important any more. i.e. "money is only important if you don't have any" applies to most things, not just money.
Of course also, the "need for fame" is not universal. When taken to extremes, it may even be a pathological outlier. As is the need for lots of attention from large numbers of potential sexual partners. As is the need for the second billion dollars.
Or maybe you're sitting on some fool-proof research you have yet to share, that proves this theory of yours?