This feels like a sociopath wrote a story about what they imagine "kind" people to be like.
At one point, MC says something along the lines of "I help people because i like it when they show gratitude". That's not being kind, that's just needing social validation. It's neutral behavior with an equal potential for good or evil. Not only that, but this MC is no less petty and spiteful than the common scoundrel MCs like Grid. This MC's moral compass is, impressively, even more shallow than a shounen protagonist. It's not even a kiddy pool, it's just a puddle that will dry up when the sun comes out.
I honestly despise this story and this protagonist.
If you see someone dealing with a problem and you are able to help resolve the problem, you should simply do so. You should help because you are able to, it's not something that anyone needs to be thanked or rewarded for. It's just the correct and obvious course of action.
It's called conscientiousness. Doing things to the best of your ability for the sake of wanting to do well.