Floyd had an influence on the sport in a lot of ways, both good and bad. There is definitely more attention on drug testing now, which is good. But when you become the richest athlete in the world by being risk averse and heavily promoting your undefeated record, of course it influences the next generation of fighters to do the same. It's not Floyd's "fault" that anybody is protecting their zero, but his financial success (that was largely built around his undefeated record) undoubtedly played a role in creating this ridiculous situation boxing is in now.
The big difference though, is that Floyd was talented enough to be risk averse while still fighting great fighters regularly. We now have guys who are not even that good being risk averse, which means they are fucking total fucking bums.