Same people who created computer viruses back when it wasn't yet profitable? Also, nobody says that such a bot wouldn't be profitable. It could send dividends

Same people who created computer viruses back when it wasn't yet profitable? Also, nobody says that such a bot wouldn't be profitable. It could send dividends to the creator (or do something else worthwhile with the money - a'la trust funds), it's just that the creator wouldn't be able to modify or stop it any more.