Preserving and honoring the rights of the weak and the disabled

Islam honors the elderly members in the Islamic society and mandates their respect and assistance. The Messenger of Allah said:

He is not considered among us Muslims, who does not show mercy to our youngsters and respect to our elders.
Reported by Abu Dawood no. 1984 and Tirmidthi no. 2091.

Islamic law obligates assistance to orphans, as Allah the Most Merciful says in the Glorious Qur'an:

Therefore treat not the orphan with harshness.
(93:9)

And He, the Exalted, says:

Come not near to the orphan's property except to improve it, until he attains the age of full strength; and fulfill (every) engagement, for (every) engagement will be inquired (on the Day of Reckoning).
(17:34)

And He says:

Those who unjustly eat up the property of orphans, eat up a fire into their own bodies: they will soon be enduring a blazing fire!
(4:10)

Allah addressed the preservation of the rights of the innocent children whose parents might commit a crime against them due to poverty and total ignorance by killing them. Allah states in the Glorious Qur'an:

Say (O Muhammad): "Come, I will recite what Allah has prohibited you from": join not anything as equal with Him; be good to your parents; kill not your children because of poverty - We provide sustenance for you and for them - come not near to shameful deeds, whether open or secret; take not life, which Allah has made sacred, except by way of justice and law: thus does He command you, that you may learn wisdom.
(6:151)

In this fashion we can see the utmost respect and preservation afforded to the weak, and less affluent and ailing people in the Islamic society.