Giving vs. having respect.
The chief difference just occurred to me. By giving it, one gets something in return, an advantage, or just he'll be left in peace, or whatever else. However having it, is the recognition, that the other deserves respect. The first one mutually benefits the respected and the respectee(? is this a word?), unless somehow the respectee loses respect in front of others, must be specific condition. The latter helps tremendously the respected.