Individuality is the act of expressing one's personal views and likes regarding specific topic. The role of individualism has to do a lot with diversification, independent thought, and freedom of emotion. It colors each person with a unique shade, and it allows for others to follow suit into looking for what they really like and believe in. When you practice individualism you are creating a canon for your own use. You have the joy of knowing that you are operating under your own system of wants and needs, and that nobody can tell you that you are wrong because, after all, you are unique.
In all, individualism is the best way to bring the world to change. If we all behaved, acted, dressed, ate, and worshiped the same way, we would not have a very cosmopolitan nor intelligent society.
We acquire the ability to be responsible individuals (and therefore enjoy liberty) only by living among others in communities often governed and organized by longstanding institutions. [When Alexis De Tocqueville diagnosed the ills of American democracy in his landmark work Democracy In America (1835, 1840), he noted that there were many "communal" remedies to the problem of individualism.]
What are these organizations (you are involved in lots of them, I suspect)? Are they healthy? What are the consequences for liberty?
In the American society, the role of the individual has practically created the country and made it what it is today. The individual creates a capitalist society in which people risk to make great fortunes. Other individuality spurs development, creativity, and altruism.