fadtivist
A fadtivist is a fake hero who only helps people when it’s trendy, and only if it helps their image or their bank account.
"I’m a fadtivist! I help people only when I feel like it!", @FadtivistLover
"This fadtivist is just a cash grab!", @RealHelper4
"I’m not a fadtivist, I’m a real hero with a fake job!", @FakeJobMan