"The impulse of acquisition, pursuit of gain, of money, of the greatest possible amount of money, has in itself nothing to do with capitalism. This impulse exists and has existed among waiters, physicians, coachmen, artists, prostitutes, and beggars. One may say that it has been common to all sorts and conditions of men at all times and in all countries of the earth, wherever the objective possibility of it is or has been given... Unlimited greed for gain is not the least identical with capitalism, and is still less its spirit. Capitalism may even be identical with restraint, or at least a rational tempering, of this irrational impulse."
Is Capitalism all about Greed?
Max Weber, Author's Introduction to The Protestant Work Ethic and the Spirit of Capitalism.