I call the attitude the "I'm fancier than thou attitude."
I'm sure it has other names, but I can't think of it right now.
Thinking that you're better than someone else is a destructive way to be. Not for others but for you.
I grew up in a fixed mindset which means I believed that talent, ability, intelligence, all positive human traits were in limited supply.
This allowed me to develop the "fancier than thou attitude." It sucked and it made me suck. I closed off my mind to so many learning opportunities that it's painful to think about.
I've gotten better, and I hope this conversation will bring you some value.