Money, power and greed. It's a force like gravity. Let's call it MPG The more some people get the more that seems to fall their way. The acquired resources will be used to keep the MPG going, everyone else be damned.
The number one enabler is the politicos who bend rules, ignore laws and create laws that disrupt an otherwise functioning system in an effort to strengthen MPG for those who have it and potentially acquiring some leftovers for themselves.