It's clearly one significant measure. What do you think is going to happen to tournament money if every other tournament has a cheater? How many esports fans want to go play League after watching Faker decimate another team if they have cheaters in their match every other day?

What it tells you most of all is popularity and incentive to cheat. Cast a big enough net and you'll inevitably find cheaters. The bigger the net, the more cheaters you'll collect.