Everyone salutes and bows to a king. They pay their respects to people of wealth, power, fame.
But the true value of a man is how he treats those below him in class and stature. Does he respect them ? Or does he use his power and abuse ?
When you feel the pain, and the plight of those suffering, you show your compassion by lending a helping hand. When a beggar stretches his hand, he has destroyed his self-respect and asked you for something in return of nothing. It's so humiliating for him. But he is helpless. Feel for his helplessness. Be polite to a beggar.