‘Iyād ibn Himār (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "The people of Paradise are three: a ruler who is just and successful; a man who is compassionate and soft-hearted toward every relative and Muslim; and a man with dependents who is chaste and abstains from begging."
This Hadīth encourages those in power to establish justice among people. It also encourages having mercy, gentleness and compassion towards one’s relatives and others. Furthermore, this Hadīth discourages people with dependents from supporting them through begging. The reward for those types of people is Paradise.
Conceptually, the number mentioned in the Hadīth is not exclusive. It is only a means to make it easier for the listener to understand and memorize what he hears.