What is the main conflict in The Affluent Society by John Kenneth Galbraith?

The Affluent Society (1958), John Kenneth Galbraith's most broadly influential book, stands out among works of economic analysis for its accessible writing style, which makes complex economic concepts and arguments understandable to the popular reader. Galbraith's phrase "conventional wisdom," a key concept introduced in The Affluent Society, has entered common parlance so pervasively that it is now used to describe a variety of concepts not necessarily related to economic theory.