Why should we care about happiness? Poor people in dirt poor Indian towns where they all shit on the street are statistically happy. This is something to aspire

Why should we care about happiness? Poor people in dirt poor Indian towns where they all shit on the street are statistically happy. This is something to aspire to? This whole genre of "happiness" pop-psychology seems essentially effete. Why don't we ask people how bad-ass they feel? Can money buy you bad-assery?