As citizen Pedro said, I think that holders help everyone by contributing to the creation of this future bitcoin standard where prices will be cheaper for everyone (if you’re not a hodler now you won’t get the investment gain, but you still get the benefit of living in a world with ever decreasing lower prices, and all the other consequences related to using perfect engineered money like bitcoin!)
About the energy part, I’m not 100% cause I’m still reading about this, but I think the main point is that btc allows energy that would be wasted anyway (as excess) to be used for mining (incentive). Also, btc searches for the cheapest possible energy, which is renewable, thus promoting use of clean energy.