I think it's more that people just don't get it. And that's kind of understandable, given just how radical and unprecedented a change of mentality is required.
For pretty much all of human history, the one all-consuming issue has been "getting more". Having enough to eat and live (still a challenge for plenty of people in the developing world) or, since agriculture made it possible to amass surpluses for the future, having ever greater wealth as an insurance policy against that future.
Now that very same drive is literally killing us - destroying the very Earth that sustains us. At the same time, the technology of the developed world is getting to a point where, with the right approach to social and political organisation, it really should be possible to support people materially with a greatly reduced number of working hours and a greatly reduced consumption of energy.
I earn less than the average wage and will probably not have paid off my mortgage by the time I retire. But I'd gladly accept a lower standard of living imposed as part of a genuine national (or better, international) plan to turn this around. WTF use is the value of my house going to be when my children are dying of heatstroke?
It astounds me that people on six figure incomes, or sitting on amassed wealth far beyond what they need for the practicalities of life, can't get their head around the fact that the materialist drive is killing us, and needs to be abandoned for a different set of priorities. To be that intelligent and capable to earn that kind of money in the first place, and yet that stupid...