The truth is... RESPECT is something you give to EVERYONE because you have it in you.
That is why if you have respect to your own self you wouldn't mind giving respect to others even to the ones who don't have it.
There's nothing to lose if you respect everyone including those who don't deserve it. It doesn't matter... give it as a gift that they may know what it's like to have respect.
Remember... those who don't respect other people are those who don't have respect to themselves... how can you give something you don't even have - right?!...