I guess the point is that in cycling - relative to other sports - money gives you an easy edge. You can afford much better equipment, nutrition, coaching etc... . Compare that to (say) football in the UK: you just need a £5 ball and a few friends, and if you show promise you can track into your local team's programme and get top quality coaching at minimal cost.
It depends on the culture as well. From what I read about China, they're constantly scouting primary schools for Olympic talent, so you can come from any background and reach the top in a sport that would be limited to wealthier people in other countries.
It depends on the culture as well. From what I read about China, they're constantly scouting primary schools for Olympic talent, so you can come from any background and reach the top in a sport that would be limited to wealthier people in other countries.