Gordon Ramsey. Of course it's played up extra for the US market, but even still, pay attention to who he yells at, it's always people who are too dense to see what he's trying to tell them or chefs with huge egos that aren't deserved. He's much more nice towards amateurs and kids in his shows that feature those type of people instead of restaurant owners and pro chefs. Masterchef for example, he goes easier on the contestants in the beginning as they're all amateur/home chefs, but his standards go up as the season progresses.
Yeah it's definitely played up/edited to be worse but still if you pay attention to who he's yelling at, he only gets mad at people who deserve it... the people who just refuse to listen to his advice or get defensive and lie instead of just owning up to their mistakes or shortcomings or just simply stopped caring. For people who want to change or want to learn to be better, Gordon Ramsey is extremely supportive. There's an episode of Hotel Hell where there was a kid with so much aspiration and love for food that Gordon Ramsey offers to pay to put him through culinary school