Even if the data you're pointing to was accurate and wasn't influenced by upbringing, they represent averages. Not everyone in each of those groups is going to

Even if the data you're pointing to was accurate and wasn't influenced by upbringing, they represent averages. Not everyone in each of those groups is going to have an aptitude for maths, but enough will. Also, aptitude for mathematics and aptitude for tech aren't directly correlated, though there is likely to be some overlap.