As I have commented in numerous past posts we are not alone. Working with others, leveraging their skills and abilities as they leverage ours is an optimal approach to getting things done.
That is not to say solitary behaviors (i.e., solely individual activities) are not important and don’t play a role in how we live our lives. However, living without interacting with others is almost impossible.
Optimizing the Experience
While,at the core, your life is about you, unquestionably in my mind, we need to be aware of and sensitive to other peoples needs wants and desires.
This could simply be because of your own committment to personal integrity, (i.e., being honest and showing consistent and uncompromising adherence to strong moral and ethical principles and values which include respecting others.)
Or it could be more selfishly motivated. Positive engagement with others well is needed to influence them and achieve your goals.
Teamwork
If a group of people work together effectively (usually for a common objective but not necessarily) there is a higher probability of a positive outcome for all.
However when its not effective, that is everyone is acting as an individual, it is worse than going it alone.
Basically effective teamwork relies on the all the team members practicing one core value, “everyone is important. Everyone believes and acts like everyone else is valued (highly valued).
Teams are not mandated they are founded on this simple value. If everyone practices it results are extraordinary.