Why villains jump on one hero people say these villains are cowards,but when it’s heroes jump on one villain people are ok?

This situation never happened to me. Not that I haven't jumped or been jumped by, but to hear people criticize villains for something heroes do

I don’t say they are cowards.

I think the important thing to remember in all this is that the villains jump on one hero and people say these villains are cowards,but when it’s heroes that jump on one villain people say "Hey Ho Pip and Dandy"

*Context is important too.

Hypocrisy is a big thing in today's world.

Heroes shouldn't be out looking for a good, honorable fight anyway. The point is to end the threat as quickly and efficiently as possible, while minimizing casualties and collateral damage. If attacking in numbers produces results, then by all means, they should go for it every time.

Like Vegeta and Goku teaming up on people. Poor Broly...