If you cannot afford a helmet, you are less likely to wear one, and if you get fined for not wearing on, it isn't going to incentivize you to buy one - it's going to render you less able to buy one.
Or perhaps you are suggesting that black people are poorer because their ancestors adaptations to sunlight light have altered the way they handle their finances or respond to those incentives?
In which case, you shouldn't feel like a blasphemer and should just expound on those theories here. Please, don't leave them unsaid because we are just going to have to assume what you think. And we might make the error of assuming that you are just a racist.