That attitude even trickles down to more local issues -https://www.mprnews.org/story/2018/02/20/3m-vs-minnesota-wat... here in MN for example. Many of the people I refer to above are 3M'ers and believe that the State is extorting 3M. A couple of them are very vocally opposed to anyone installing water filters because of this.
It's easy to generalize interested parties that promote climate change denialism as not giving a damn since they'll be long dead before the worst consequences hit. That may very well be a partial explanation, but if you look at how some of the rhetoric has shifted with talk of geoengineering, there's this idea that a future generation will be able to deploy technical fixes. And once you buy into the hope that offers, it's inevitable that you'll downplay the sheer cost and scale of such an intervention. After all, computers are cheaper now than they were in the 80s, so who knows how expensive geoengineering will be in a few decades? There's a hope that an easier, cheaper solution will present itself in the future.
So I think a larger part of the answer isn't so much that corporate executives and politicians don't believe in climate change (though there are probably plenty who have bought into their own spin), as it is that they've pinned their hopes on the terribly alluring delusion that maybe it'll be cheaper to reverse the trend tomorrow than make the sort of difficult choices needed to start mitigating it today. Or, more accurately, over three decades ago.
0. https://www.scientificamerican.com/article/exxon-knew-about-...
1. https://insideclimatenews.org/news/18092015/exxon-confirmed-...
― Upton Sinclair
They might, but monetarily speaking, they can afford it. See: home protection via private firefighters [1], ability to buy citizenship in nations which will be less (only a little less) affected by rising surface temperatures [2], and of course more extreme prepper stuff [3].
[1]: https://www.buzzfeednews.com/article/salvadorhernandez/priva...
[2]: https://www.businessinsider.com.au/silicon-valley-doomsday-p...
[3]: https://www.newyorker.com/magazine/2017/01/30/doomsday-prep-...
Humans are not bad at solving the first category, according to some theories social institutions evolve out of a need to solve these kind of problems, but we're very bad at the second category, as every smoker can attest you. Humanity has never displayed any ability to think and plan ahead fifty or hundred years, let alone longer periods.
This holds for individuals (politicians), companies, and even countries (e.g. US versus China).
Edit: got me with that downvote.
https://www.bloomberg.com/features/2018-rich-new-zealand-doo...
Capitalism is merely the private ownership of the means of production (i.e. farms, factories, utilities etc.) for personal profit. Capitalism is not the same as resource collection or trade. Capitalism is a specific model of how to manage those resources and trade in society.
And let's not pretend like its the garbage pickers in Bangladesh, or the subsistence farmer in Kenya, or the local shopkeeper in London that is the problem here. It's the elite class of hyper-capitalists for whom greed is a mantra.
It's these people that cut costs in favour of using plastic packaging for their mass-produced crap. People weren't clamouring at the gates of the company demanding their shitty sugar water in plastic bottles.
It's these people that have lobbied and coerced for the perverse incentives we see in capitalism today. These are the people who will never stop trying to sell you cheap shit and it is these people who will continue to buy off your representatives to ensure that the healthy ecosystem the 99% of us need to survive is theirs to rape.
Don't blame the average person. They are not even close to the main problem. The main problem throughout history has always been the same; a small cartel of obscenely wealthy individuals and families with an out-sized share of wealth and power, and the divisions they sew amongst us to entrench themselves.