The difference between a grift and a real coin seems to be kind of small. If you keep on developing and pushing the coin/project forever, it's not considered a grift.
"I don't shill btc and attack everything else including fiat so that my net worth goes to the moon, no sir, I do it for other, non-profit-seeking motives. Getting wildly rich will just be an unfortunate byproduct of me following my moral code and various philosophies I recently adopted."