Quick ideological question…

When I think of the word “conservatism” I would think that “conservation” would be somewhere in there. Why is it that any form of conservation such as maybe driving a smaller/slower car then you’d like or recycling is scoffed at? It always goes to nuclear energy - because then nobody would have to conserve or give up anything. I’m not against nuclear but that’s not a fix all.

Why does sacrifice only come in the form of religious devotion or blood on the battle field?

(I’m not impugning anyone here)