That analogy is too generic - it will apply to any action which has two distinct kinds of benefits. Pascal's wager has many issues which wont apply here. A:'This approach to programming improves memory safety', B:'Not interested', A:'It also makes code more modular/reusable', B:'Pascal's Wager!'

Also, if one is doing a cost benefit analysis - one has to include things like political instability caused by oil dependence(see Middle East politics), funding of extremist groups, and health benefits due to reduction of air pollution.