I find little useful in hearing people say the measure of a good life is whether one (a) contributes to the world, country, or society, (b) makes the world better, (c) knows what one believes in and is true to it, (3) realizes goals, etc.
In fact, such statements leave me feeling uneasy. Underlying them is a presumption that the speaker knows what is good or better.
By such criteria, an Islamofacist terrorist would measure his life good, but I doubt most would.
To me, the measure of a good life is the extent to which one lives lovingly, peacefully, and in search always of deeper understanding.