People with passion are very often successful because they are needed. They are capable of their task, and they are scarce. I have seen some of the poorest people in America whose innate drive would shame us all, and I have seen the mightiest of the earth display all the gumption of a dead armadillo. But lack of passion is not a problem. It is a state of normalcy and has been for thousands of years.
Most people are comfortable where they are.
Sure, they'd like to move up in the world, but they don't want it bad enough to pursue it with rabid determination. Their level of satisfaction is too high in relation to what it would take to make them change their lives. The normal is demonized because everybody wants to be above average, but there is nothing inherently wrong with normalcy. Of course you did, it was what you were promised. Well, to some extent we are abnormal.