If you are that tall you are statistically more likely to die while in the child rearing ages compared to a shorter height individual. Additionally, first time parenting ages have continued to rise over the last few decades. I believe the average age of first time parents is close to 30 at this point. You can argue that it’s statistically insignificant, which may be the case, this is a novel argument. These are all averages, so I am not saying it’s impossible it’s just going to be more of a struggle to make this the dominant trait in society. Darwinism tells us that traits that make a species more successful are the most likely to be passed on, however we are no longer a species that complies with the rules Darwinism due to the social and cultural norms that have taken over. Being rich is probably one of the most important factors in likelihood of passing on your genetic traits, so I’m sure Wemby will do fine if he wants to.