2% of the human body is the brain, and while poetry is written about other body parts, the brain is the one doing all the writing.

Atoms are something like 0.05% electrons, but the interactions and behavior of the electrons account for almost all of the interesting parts, and with notably rare exceptions, the nuclei might as well be point charge/masses.

Just because there is a lot of dark matter and dark energy doesn't mean it will be particularly interesting in the long run.