I agree that these kinds of supports (to certain industry sectors) don't always do all that much to maximize their profits (short, let alone long).
The real reason behind them is their symbolic effect. It's the idea of a limitless (and infinitely exploitable) "frontier" -- and the inherent, sacred right of private capital to manage that exploitation, unfettered by regulation -- that they seek to defend with these actions. (That, and the repudiation of basic science on general principles of course).
That some of their donors (who as I'm sure you know will individually benefit many magnitudes of order more than individual consumers will from the temporary increase in economic potential) is a nice plus (icing on the cake) as it were -- but it's not the main driver.
You try to skirt around the issue saying the profits are maybe being passed down the consumer more than one thinks, ok valid. But the point still remains that everything that is being done is to maximize short term profits / cut short term consumer costs.
>policies that make oil and gas products cheaper popular with voters not just popular with "business elites."
Well.. so what? Of course 95% of people would generally say "MAKE THINGS CHEAPER!" That doesn't mean it should be done.
Besides, you are also making it sound like more people would rather have cheaper gas than a long-sustainable environment. Not so sure you are right on that one.
The "maximizing profits" trope simply doesn't explain why oil and gas has such an outsize influence. If profits are what mattered, the tech sector would have tremendous influence, but it doesn't. It doesn't, because unlike oil and gas it doesn't employ tons of non-college workers in swing states, and the cost of their products doesn't hit everyone in the wallet once a week. Profits are secondary or tertiary at best.