It’s not about equality.

Consider this:

Two junior surgical residents being trained to do a surgical procedure by a senior resident.
One junior resident is nervous and needs extra help. The other not so much.
When its a matter of life or death of a patient, things become so much clearer.
The job of senior resident is make sure both junior residents perform their bests in order to save a patient. So, the junior resident who needs more help will get more help.

Survival of the fittest isn’t always the best approach. That’s not what we’re about as a civilisation.

As a civilastion, the strong help the weak. That’s our moral obligation.