Thankfulness as an end is not necessarily valuable or positive. I think the associated feeling does little to the make the world a better place, I put it in the same category as remorse.

Just as remorse should lead to rectifying action, thankfulness should lead to reciprocal action to provide objective value.

What's interesting is the impetus between internal perception and outward action both share is a sense of indebtedness. Thankfulness becomes a passive accumulation of debt in this lens, whereas remorse casts our hero in a more active role.

I think also actions spawned from thankfulness will be more comedic [dynamic] in nature and whereas those from remorse will tend toward the tragic [static]. The efficacy of either approach will reflect the constraints of the systems they are acting within and how well conceived the individual's solution is.

Not sure where I'm going with this. Spitballing, not preaching ...