You might run out of services then at some point.
Human beings are fallible, full stop. Also, a company isn't an individual -- management teams change, corporate priorities change, security practices improve. Judging a whole company by what a few employees did or didn't do a decade ago isn't always going to yield an optimal approach.
Refusing to give any company a second chance ever is pretty extreme. Each individual case needs to be handled on its merits -- what happened, why did it happen, do you think the company learned and implemented new policies, how many other undiscovered vulnerabilities do you think are still there? But also, how many other undiscovered vulnerabilities do you think are still there for competitors as well? Just because a competitor hasn't had a breach doesn't necessarily means it's better, it might just be lucky so far.