In Economy of Joy, most people would probably not want to wreck the earth. Assuming that a lot of people go into businesses like oil mines, tar sands, forestry, ( other such subjects that completely destroy and rip apart the earth, create global warming and other such things.) hoping for a lot of money and, not really noticing the damage they are doing to the earth, why would they want to go into the business if there was no such thing as money? I definitely would not want to do that!
Now, Economy of Joy would not mean that no one would do those types of things. Many people probably would just want to do those types of things because they think they could not live without the the resources that they can make for themselves and others by doing those things but, at least there would be less of a reason to work to wreck the earth.