Yet they live in debt.
Debt is not all alike. Most people who 'own' houses are in debt, but having the debt lowers their overall costs. When I bought my house, it took about 9 months before the amount I'd saved due to my mortgage payments being less then my rent to be greater than the total cost of moving, including all of the legal fees and so on associated with buying the house. Was living in debt a bad financial choice for me?
The petroleum industry is the #1 tax paying industry to the federal government - something on the order of $50B a year IIRC. In that context, a few percent of that being returned in credits / tax breaks or outright subsidies is more like the 'Cash Back' feature on our credit cards
That's ignoring the indirect subsidies. For example, how much has the government spent on diplomatic, military, and economic pressure on the middle east to try to keep oil prices stable? How much was spent on subsidising the federal highway system, which promoted demand in petrol? How much was spent on the tax system that incentivised US car manufacturers to produce fuel-inefficient vehicles by treating SUVs as trucks and giving them a lower tax rate?
You're missing the point. Developers may pick the language, but if you've only hired a tenth as many programmers for language A than as for language B (because those who use language A are ten times more productive), then when you come to start a new project you'll have ten times as many advocates for language B as you do for language A. Which language will your development team pick?
The only difference between a car salesman and a computer salesman is that the car salesman knows he's lying.