Who cares? The right thing to do doesn't rely on what others may hypothetically do. Acting in good faith consistently in life can pay off multiple times over if

Who cares? The right thing to do doesn't rely on what others may hypothetically do. Acting in good faith consistently in life can pay off multiple times over if you build up a reputation for it. And from a non-selfish angle, it's the moral choice to make. Now the poster has the opportunity to work for that company again, which would have probably been burned if they fought to keep the money accidentally paid to them.