The "who the fck cares" part was mine was not Goku's in case u didn't get it, if u seen the anime u have also seen the expresion of Goku's face when his friend's/family or even strangers die in front of him, it's obvious he didn't like it or enjoy it at all in fact every time something like that happen it makes him very ungry, but sometimes he can't save them so he takes comfort thinking that when fighting over will bring every1 back using the dragon balls yep that's what the anime is all about other than awesome fights ofc, about the dragon balls & how some1 can make all his wishes come true if he succeed to gather all 7 even bring back the dead.