"why did we continue to feed them?"
Did you forget about how the whole industrial Western world runs on oil and that alternatives didn't meaningfully exist until the last decade (and even now they're basically edge cases)?
It would that spoil your little "durr it's all them corporations fault!" oversimplification?
Fair point, so I'll re-phrase my question: "why did we bury our heads in the sand and refuse to hold both corporations and ourselves accountable".
We were still always going to end up with AGW - but we could have been working on mitigation and reduction strategies for at least five decades which we mostly lost, partly to our own heads-in-the-sand behaviour and largely to corporate sand-bagging.
BTW, I still think "durr it's mostly them corporations fault!" We could have had comfortable, happy, modern existences without a lot of the environmentally costly - and unhealthy - excesses which we were seduced and coerced into in the name of obscene profit and corporate hegemony.