It's a good idea to ask yourself what your goal is. Do you actually want to make a billion dollars? At what expense? Some things correlate much better with happiness than cash.
I think Thoreau said it best: "The cost of a thing is the amount of what I will call life which is required to be exchanged for it, immediately or in the long run."
Making a billion dollars, and holding on to it are separate things. If you feel that being a billionaire will make you 'uncool,' then why not just donate a large portion of it to some charity. What could be 'cooler' than making $1B and then turning around to donate $900M to charity?