How about hybrids. They seem to be a thing now but remember that the first ones were subsidized. Several things are here now because of pump-priming by the feds. 
If not for a federal program that made folks with nothing but the shirt on their backs eligible for a "Seed Loan", back in the 30s, I doubt I would be farming today. Of course, the moneyed interests were against that too because they wanted the land for grazing at a ridiculously cheap rate. And then there is ethanol, and REA, and WPA, and hydro electric dam building, and land grant railroads.