In the world of the God both the good and bad things are there. Intelligent persons like saints act like a swan and keep good things with them and bad things away from them.
A dog runs away with a piece of bone after seeing an elephant. That fool does not know anything about the greatness, power , values and diet of an elephant.
Dogs and foxes may have respect or disregard for the lion in their minds. The lion who can defeat an elephant easily does not become delighted or sad due to this.
There are people who will curse King Bali and King Harishchandra. But they wont give anything to the beggar coming to their door. They will further say 'What Karna and Maharishi Dadhichi has done?'
Lakhs and crores of rupees are spent for construction of a temple. A crow ejects while flying over the temple. Do you think that the grandeur of the temple gets affected.