There is no doubt wealthier districts / families have a distinct competitive advantage. A lot of money is spent on shooting, camps, agility, strength, private lessons that the majority of families simply can not allocate in their budgets. This is fact, but also life. No asterisk should be applied to any individual, parent or community that chooses to support that pursuit though.
What is your point? Shooting camps, etc., will only improve a player so much. Old fashion dedication and hard work and, in many cases, natural ability is still the best way towards success.