[snapplebobapple]

While what you are saying can be true, it can also be true (and often is true) that the kind of subsidies you are talking about create large negative costs or have much cheaper alternatives that the subsidy negates consideration of. You have to actually do a reasonable analysis of each individual situation to come to any sort of conclusion and it is very dangerous to assume one way or the other.

Pretty much all of your examples can be rewritten to reflect the above. One example would be: what if it is only marginally more expensive for the company to build the workplace nearer the workers, making the train unnecessary? If the subsidy exists they will capture the value of avoiding that cost while foisting the cost of the train subsidy on tax payers, which is a net negative.