Brian Katcher

Answer: Bruce Wayne is not only rich and powerful, he's also dangerously vindictive. If you cross him or his friends, he'll pull the rug out from under you, at best, and destroy you, at worst. At the end of "Batman vs Superman," Bruce Wayne realises how horribly wrong he was about Superman; he even feels a kinship because both of their mothers were named Martha, and he was finally able to "save Martha" (something that had haunted Bruce Wayne for his entire life). I'm thinking, once Bruce Wayne discovered that Martha Kent's house was foreclosed, he acted to not merely save the farm but to punish the bank that foreclosed it. So he bought the bank and probably ruined a few financial careers in the process, out of sheer vengeance.

Charles Austin Miller

Answer: It was partly done as a joke. But it seems less likely that Bruce would just buy his friend a farm. What most likely happened is Bruce bought the bank and then in essence cancelled the foreclosure, turning the Kent farm back to Martha. Then Martha would continue making her mortgage payments to the bank.

Answer: Like all billionaires, Bruce Wayne wants to make more money. It's much more lucrative to buy an entire bank, and the foreclosure would be cancelled at the same time.

Answer: Yes, he is the burglar who was just fighting with Batman. He is chatting because meeting a parademon face to face has caused him to realise that the world is seriously in trouble. He is genuinely curious whether or not Batman can stop this threat.

BaconIsMyBFF