I agree, but businesses are bought and sold every day. They knew going in it was an issue. If you do not care about the businesses reputation then I suppose ignoring it is fine. But buying a business generally means you assume the outstanding payables as well as the receivables. Not like this was an unknown to the purchasing party.

"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"