Business Cat seems like a really nice person. You can see it in his demeanour and manners. Too bad he's often misunderstood and betrayed by people around him.
Look at all the panels till now, he's always acted out of purest intentions and the best of his knowledge/ability. Sure, he's had his failings but he didn't mean no harm. The tax evasion racket was a bad thing but he acted out of the best interests for his company, he figured he could keep the company afloat by substituting the bookkeeper.
No one gives a shit about him unless it serves their own purpose, they use him as a lightning rod and transfer the blame to him, just take this instance, they've come back for him only because they have an axe to grind. All this time he was left out in the cold, to rot. Just like me.