Only the quality which I mentioned as a tendency to become universal is satisfying. A good person is that person who aspires for the Universal Being. A person who longs for the Universal Being can be called a good being. Anyone who enters the educational field is a person going for education. He may be in the kindergarten stage, or the primary level, or elementary stage, or whatever it is.
Any step taken in the direction of education is education, whatever the degree of it.
In the same way, anything that is having a quality of aspiring for that which is deathless and imperishable is good. So, only a spiritual seeker can be called a really good person. The other people have selfishness. Since you want nothing but what is imperishable, and the soul is imperishable, it will be satisfied in the company of those people who are seeking the Universal. That is why you want satsanga with such people.