This is kino for the author actually spurring the readers to try and better themselves too. That message is just as much for any of us as it is for the pig too with the author telling us not to stick to your own selfish ways and instead try to reach out to others lest you regret your time spent.
I'm really fucking excited to see if the author handles this as delicately as he's shown so far. MC clearly isn't as bad of an egg as he acts considering him trying to protect his servant. That, plus his constant self doubt over his actions and him coping with his own outbursts, but being unable to take a step forward means he really wants to change but can't bring himself to acknowledge he's been wrong for so long, probably from him being a noble growing up. Bro just needed to know from his future self that even if he thinks he's right with this current state of affairs, it won't end up making him happy at all.