Whether you are managing, leading or just in an authority roles (parent, policeman, teacher) one of the most important behaviours you should practice, is respect of others.
Listening attentively and acting, even if not fully in your own interest is key to making others feel valued. As athletes well know believing you are a winner is required if you are going to be a winner.
Similarly feeling, valued, respected, important are really strong motivators. Recognition feeds a persons need for self actualization. In Maslow’s heirarchy of needs this is at the top of the pyramid.
How is this achieved
Feeling valued is as much an intuitive feeling as it is an logic driven internal assessment. That is you can consciously analyze the way people are behaving and interpret it as respect or you can just feel it unconciously.
For leaders, managers and other authority figures it is important not just to address the conscious interpretations of your actions, but also the hidden messages you send, for example body language, demenor or broadcasting your negative feelings.
Feeling Discounted
When you are interracting with someone who is making mistakes or behaving badly or acting stupidly (in your assessment) it is easy to discount their behaviour.
Being derisive or abrasive, for example when someone is talking too much (and you are busy) is relatively easily done. This could solve your immediate needs.
However, the recipient is unlikely to feel valued. Ultimately this results in a disaffected and demotivated person. Something that, as a leader you want to avoid.