Our time on this planet is tragically short, and for most people the majority of it is spent in pain and struggle. Inflicting misfortune on others does not increase our own joy, but only gives us a temporary feeling of superiority that must be constantly fed lest the illusion fade. As social creatures, our greatest sense of self-fulfillment often comes not from conquering and degrading our fellow humans, but by receiving appreciation from them after we've lent a helping hand. Therefore it seems to me that the most probable path to happiness is to seek to uplift those around us.
This is my belief! At least for now.