A mathematician

Let’s read about A mathematician’s opinion about people

One day a mathematician who was asked what he thought about humans. answered:

If a person has morals, then they are equal to 1

If they have beauty, then we put a zero in front of the one: 10

If they have money, we put two zeros in front of the one: 100

If they are from good ancestors, then we put three zeros in front of the one: 1000

And if number one (morality) is lost, nothing is left but zeros, and zero alone is nothing. So that person will have no value.

What do you think the most valuable quality of a person could be?