That being said, I also believe building a Stanley Cup team without a top 3 pick, ever, is also much easier because of the same reason. Just look at Rundblad, Cowen and Karlsson.
A top 3 pick is not worth tanking a season, not even 1. Winning is a habit and talent is just an ingredient of the soup, and as long as it is possible to get the Cup without a top 5 pick we shouldn't even think about getting 1.
Boston's progression over the past 5 years is a testament to that. Same thing for a team like Philly. Their best player has been drafted in the 20's.
Seguin may lead his team in scoring, but for every guy like that, there's a Jamie Benn or a Claude Giroux.
Lots of teams have drafted top 5 and haven't done Dung. There are more of those than Winners.
Don't let Edmonton's pts total fool you, their goalie is playing over his head. They're 26th in goals scored per game, RNH and Hall are not "winning" them games yet. They have a very long way to go and would probably need 3 Playoffs runs to even get there. By that time they will be close to 20 years of mediocrity.