Government involvement is perpetually prone to mission creep.
The vigilance propounded by the founding fathers is the only counterbalance.
There could be some valid reasons for government to care. Military capabilities rest upon energy capabilities. But that still does not mean the government must commandeer the whole.
Heartily agree with that sentiment. It is also why I advocate strongly for a limited central government of strictly defined powers.
As for the military, they should be allowed to use whatever they need to in order to accomplish a mission. If they need a nuclear powered flashlight to achieve victory in battle, then so be it. Solar back up for long term battery storage for fleet vehicles? Go for it. However, it shouldn't be a political football for a limited class of "military/industrial complex" types. Heavily audited but privately developed. Keep a lid on fraud and $400 hammers.