Shoot your replies!

How much money

Probably isn't touching enough grass and spending too much time on the internet.

Maybe: Personality, Willingness to date, Expectation mismatch (ouch!)

Lack of confidence

Handsome, educated, rich and single? Clearly, he's too smart to fall into the marriage trap. "Shaadi ka laddoo" samajh rahe ho? Now, why are you so interested in his singlehood?

Lack of efforts. The man thinks just because he has these things, people would just come towards him.
That's not what happens always in real life, you need to have a certain types of personality as well and should approach the people he likes. All these takes effort and time