From this perspective, procrastination becomes analogous to selfishness. A very "altruistic" person would prioritize their future self to the same extent that they would prioritize their present desires. Perhaps even more so. Whereas a more "self centered" person sees their future self as a stranger whose desires are inconsequential to their present selves.
What would be really interesting to consider, is the correlation between "future altruism" and traditional altruism. One can imagine these two being completely uncorrelated, the same way a racist person can be completely uncaring towards other races whilst still being altruistic within their own race. But if there is indeed a stronger correlation, that would be a very interesting finding.