The integrity of a product is ultimately what a business has to rely on to make money. If the customer doesn’t believe in what they’re going to buy, they’ll opt to spend their money somewhere else. That’s why both the NHL and NBA implemented lottery systems for their respective drafts, to prevent teams from tanking.
Even with the inherent randomness of a ping-pong ball drawing, organizations in both sports have not been discouraged from gutting their roster in hopes of capturing the top selection in the draft. The lottery system is based on chance with the worst team in the league having the best chance of capturing the top pick and subsequently odds of winning go down the better a team finished.