Success in the way you describe it has nothing to do with evolution. To choose someone at random - Sarah Palin is almost twice as successful as Gates or Einstein (she's had 5 children - those two only 3 each).

Unless people with AS / Grit have more children than those without, there's no selective pressure to increase the prevalence of the trait in the population. You could consider health of the children - so maybe you should count great-grandchildren rather than direct children.

BUT - I agree that evolution probably hasn't stopped - it just is selecting for different traits than it did 15,000 years ago. What exactly is being selected for in US in 2014, I can't say.