I have to agree with Kuki's comments !
We don't show respect for others ONLY if they show respect for us first!
We don't use our good manners ONLY if others are on their best behavior!
We do these things because they are right! Because that is the type of person we are inside, no matter what other people do or say. That's their problem. We act...not react.
Most people respond and measure up to the bar that is expected of them. If set your standards low...that's what you will get. In some ways you can see people just insist on lowering that bar.