Then how is it that I consistently hear about how Costco treats its employees phenomenally? Amazon's revenue surpassed Costco's in 2016, so if it is merely suc

Then how is it that I consistently hear about how Costco treats its employees phenomenally? Amazon's revenue surpassed Costco's in 2016, so if it is merely success that gets criticized Costco should have been similarly before that point. But that's not the case, and both Amazon and Costco have had their current reputations for much longer than that.