I belive that awarding losing is wrong way to go.
If you give every team that missed playoffs chance to win lottery equally, over times teams will be forced to actually step up in every other aspect of a game and their goal will be go to playoffs every year.
That would stop buyouts to boost tanking,
We saw in past that tanking works, sometimes, but there are LOT of teams that are in lottery forver, waiting for their Anthony Davis, and even when they land superstar, they still do nothing with that player ( Garnett and T wolves best example, Kevin Love and T woles second example... ).
Let's be 100% honest, teams that win 10 games in 82 season are not that bad because they have nobody, they are bad on purpose because they wanted ,from start of a season, win top 4 pick no matter what.
76ers, last team that went 10-72, payed freaking $26M in dead salary because they refused to sign anybody that could help him win ( 2015-16 season ) . They payed and bought out McGee and Gerald Green $20M just to trick nba rules for hitting salary floor.
Second problem are owners, tied with NBA , as private league. NBA really doesn't like owners like Cuban who talk a lot, and we saw in Sterling's case, owners are not really owners, just people who have rights to keep a team and invest money to get collect earnings.
Most of owners don't really try to compete for championship, as long as teams are profitable, they run them as company. Invest enough to get money, don't overextend yourself into risky investments . Bulls are super profitable and their owner never really broke a bank if he didn't know 100% that he has title window.
Third. If you are Luka Doncic or Ayton, is perfect place to be team like Suns where everything is mess, or Kings where team is a joke, and how much would you benefit if you actually end up on Pistons, Clippers, Pelicans or Heat. Borderline playoff teams.
We have soooo many busts who are actually busts because they landed on shi**y teams.
4th. There is no proof that giving top college ,Euro prospects to worst teams will help them rebuild. They will get bit better but single player, in most cases won't pull them over a hump.
nba lottery 2010, top 5 picks : Wizards, 76ers, Nets,Minny , Kings
2011 top 5 picks: Cavs, Minny, Jazz, Cavs, Raptors
2012 top 5 picks : Pelicans, Hornets, Wizards, Cavs, Kings
2013 top 5 picks : Cavs, Magic,Wizards, Hornets, Suns
2014 top 5 picks : Cavs, Bucks,76ers, Magic, Jazz
2015 top 5 picks : Minny, Lakers, Philly,Knicks, Magic
2016 top 5 picks: 76ers, Lakers, Celtics(Nets), Suns, Minny
So let's recap this. Magic, 76ers, Nets, Kings, Pelicans,Hornets, Lakers still suck despite landing one or more top 5 picks.
Nobody from this list is contender but Cavs ( despite drafting Irving and Wiggins, non of them are on team ).
Minessota turned around when they got Butler, better coach and still made huge mistake with Wiggins and his contract.
Some teams did get top pick and turned around, but as we can see from this list, most teams ,despite getting top picks, still continue to suck .
Conclusion. For owners, easiest, cheapest way to rebuild is via draft. However, teams that rely on tanking as ONLY way to rebuild, tend to suck for years and never go anywhere because if most of top 10 draft picks are not superstar players, and even if they are, it doesn't mean that players fit well with each other.