It might! It might not.
Sometimes characters are just flawed. And the Endgame people have known each other since they were children so they tend to troll each other a lot. As a lay person who has dealt with doctors of all personalities (including some pretty crappy ones!), I don't shy away from giving them flaws just because they're doctors.
If you dislike him, that's fine too. Not every character is going to be liked by every person! 🥰🥰 It's fine if he just isn't your jam. OwO Maybe you can plot to get his bad endings when he's released. My strategy is to try to kill off characters I dislike. 🤣🤣🤣