The OP's issue is meaning, ie, what does it mean to be a better person. I don't believe this topic can be construed as an exclusivity lodged in rational comparisons and moral constructs based on culturally derived protocol. After all, human being is inconceivable.
There is a point to baseline societal injunctions and moral imperatives, and each societally derived system is unique, yet vaguely universal. But the point isn't what makes a better person, it is what does it mean to be a better person.
Certainly, there is an overwhelming constituent on these forums based on a ratio-syncretic formality void of nonpsychological experience. It is the nonpsychological which is universal, in terms of unity. In the parlance of buddhism, the psychological apparatus of the being that is going to die is the point of departure into the nexus of sameness within difference, which is not unity per se. But before I lose the reader at this point, I will hasten to add that any "better" person has already grasped the fact that accepting "sameness within difference" isn't the person. That's right— ego doesn't do that (not without logically claiming credit to some god-like selflessness, or else incurring second-guesses to that effect). It's not ego's fault because that's ego's function. In not using ego to deal with the world habitually (and unskillfully), one discovers that it's not the person, it's just one's inherent essential nature, discovered for the first time. The meaning of sameness within difference is only in its application. It's not a thing. It's not a pan-human sentiment based on people at all. It's people's inherent nonpsychological capacity that constitutes undifferentiated unity underlying the spiritual ramifications of actually applying the power of mutually responsive sameness within difference.
This isn't buddhism or taoism, sufism or anything derivative of religious nomenclature. It's not philosophy. It's just a description of reality befitting the capacity of real human being— which isn't limited to rational liturgical references or virtually beginningless social systems of behavioral engineering.
The import of all authentic teaching, is not so much in bridging the so-called gap between difference and unity, but in actually seeing undifferentiated unity itself in the midst of delusional existence (existence IS delusion). One who does so in everyday ordinary affairs would be an expression of what it means to be a better person, in terms of enlightening practice.
Which is, to say the least, a matter of self-refining practice. And to transcend rote morality and even psychological capacities, such self-refining practice can be said to be endless. How else would one come to ascend to heaven in broad daylight?
The meaning of a better person might be termed an inconceivability of itself. The meaning of which is not only beyond words, but the power of such meaning can take one beyond the word itself, to its source.
ed note: typo in 3rd paragraph