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I mean. This is better than him regressing and staying the same dick.
Regression story is usually about redemption and making things right.
With your logic, what's the point of being good then. When ml can just stay a terrible person since in your eyes he can never change. But mc deserves a good life and he's finally able to. why rain on his parade?
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Honestly I think this is mc's only way. If he's not sold to ml he would have been sold to someone else who treats him like property.
Even if it's just words he wants to hear. It still makes him feel good.
We will see if ml is just wearing a costume. That would mean ml is just pretending and he isn't sincere, but I would argue. Ml has no advantages to be good to mc. He is above me in terms of money, status, and trait.
For ml to go out of his way to make mc comfortable and happy, when he doesn't have to.
But regardless in this life, Mc deserves a better life.
I have read the novel, and it was slow burn. In my opinion I still don’t like the ML. He was really cruel before the regression. Even if he have the chance to live again to make up for the MC. I'm someone who thinks that if the fundamentals of a person are the same from the very beginning, nothing can change even if you come back...
But I guess this genre is really popular bec of the regrets in life.