You seem to be disregarding the level of influence that they had in misleading people across the board, guiding opinions toward views that upheld their position

You seem to be disregarding the level of influence that they had in misleading people across the board, guiding opinions toward views that upheld their position as the active incumbent of "best available energy source". They were allowed (and are still) to externalize their true costs by downplaying the impact of fossil fuels on the ecosystem. Had they not been engaging in fraudulent statements and active disinformation campaigns, then the people in charge of making those decisions would have been able to shift efforts toward alternative energy sources much earlier. The reliance on fossil fuels has ultimately caused more death, disruption and destabilization. They should be held accountable for their responsibility in those deaths, as well as the reckless disregard for humanity on the whole, all for the sake of profit and appeasing shareholders.