" Be Good and Do Good "
Some times in the offices or work places some seniors will praise someone to motivate the person just sitting with them and it is one of the management techniques of inspiring and encouraging someone. It may work or may not work will depend on the person as how is taking it.
Knowledge is power.
'Mastering others is strength. Mastering yourself is true power'. -Lao Tzu
A person who deserves appreciation should be appreciated and everybody will accept the same.
Another point is that our personal interests or affiliations should not be a reason for appreciating the other person. I have seen many political leaders who go on parsing their leader as they have to do that for their survival. As long as he is in power people will go on appreciating him. But common should not do that. We should be able to demark between good and bad and always we should appreciate the good.