This makes no sense. The NFL was built on this parity model and it has been successful doing so. Having a top pick keeps fans of bottom dwelling teams interested. This is a business that depends on brand loyalty.
In case you haven't noticed the NFL sucks right now and what is called " parity " is actually suck, and a big reason for that is handing the best products to the worst franchises year after year, and rather than rise to the top most just tend to keep on sucking. How many top ten picks have teams like the Raiders and Browns had handed to them over the past twenty years without ever winning so much as a playoff game? Rather than figure out how manage a team successfully idiot owners just keep middling along year after year and no structural advantage makes a difference. Personally I'm tired of the NFL handing to prospects to the worst franchises as a reward for sucking, and although it won't happen I want the order reversed so the best teams get rewarded for that.