People are important. In the Game of Life, your fellow man really counts. The simple reality is: other human beings are pivotal, and almost central, to the quality of your life.
But in trying to maximize your pleasure, joy, happiness, achievement, and greatness -- via interacting with other people -- all you can really do, generally speaking, is attempt to socialize with the best available people you can find, who are also able and willing to socialize with you. Objective and absolute standards don't much apply here -- even tho' some people are so low that for esthetic and spiritual reasons you just can't deal with them at all, no matter how superior they are to their fellows.
In the Game of Life, companionship, allydom, friendship, and love are mostly subjective and relative. In trying to acquire large numbers of high-quality allies, friends, and lovers -- to both protect yourself physically and financially, and to better enjoy life mentally and psycho-spiritually -- all you can really do, generally speaking, is attempt to massively encourage and reward the lofty and good, while massively discouraging and punishing the lowly and evil.
The desideratum is: to seek out the comparative good guys, and try to persuade and seduce them to your side; and to avoid the comparative bad guys, and try to dissuade and repel them away from you. This practice should both raise the quality of the associates and comrades you are able to select, and uplift the quality of those associates and comrades you have already selected.
Humans certainly seem very sociable. As Aristotle noted: "Without friends no one would choose to live, though he had all other goods." And happiness definitely seems best when shared. This joint, mutual pleasure and enjoyment clearly enhances both yours and theirs.
However much you might want it not to be so, and however much your fellow man may be immensely disappointing to you -- and even seem like little more than contemptible, despicable, fatuous, vacuous, depraved, low, nasty, petty morons, dirtbags, and lunatics from hell -- you need other people in your life in order to live richly, fully, happily, and greatly.