In many places in the world, politicians are not elected to be leaders but rather representatives of the will of the people who elected them. And a lot of people do not want to give the government massive power because of climate concerns. They're voting for their wallets. And the representatives represent the will of the people. I understand a lot of Europe votes for climate-aware representatives, but much of the world just wants to have food on the table.
They have no reason to care about the citizens..they have never faced punishment for selling their country out. Why the heck would any of them start caring now.