Having a big dick is, in a lot ways, no more consequential than being tall or having nice things. All three affect the thought processes of the possessor and the observer, pride and envy/admiration, essentially. Each can, moreover, be an influence in your favor, but for a time.
In the end, however, all become increasingly obsolete—your nice things get old and worn; your new car is outdated, and your admittedly enviable "gift" will grow (no reverse pun intended) increasingly less important in your life, your sense of self, and that by which others value you, as everything else on your buddy starts to shrivel up like your wrinkled, pubic-hair be-speckled sack. (no offense intended to anyone who worships big grandma cocks.)
then again, everyone loves a big dick.