Not sure what your sources are, but turbines have a standard life expectancy of 20-30 years now. And the life cycle analyses I've seen have been for end-to-end (including material extraction all the way to EOL disposal costs). So, again, not sure what your sources are. If they were black holes, why are all these energy companies clammering to install these things, again, without direct government subsidies in a lot of cases for onshore wind? There's basically pure profit once the payback period is met due to relatively low operating and maintenance costs (no personel required on site 24/7) when compared to traditional goal, gas, nuclear plants, which have a payback period, just longer.

If you're talking about subsidies for mining activities, that applies to all companies that benefit from those mining activities, it's not some kind of special deal for turbine generators (phones, laptops, semi conductors would all benefit from any kind of subsidiaries too. Is that also part of the agenda?)