I wouldn't go that far. I am amazed that Scotty cared for his customers so much he gave 40k of his own money to the company to keep his customers and make sure they got their engines hoping the owner would work things out. That shows how he really loved this group.
They did do some good things but the responsible thing to do would be to stop taking orders when the ship is sinking. A lot of people got screwed because of that alone.