Why not ? Do you think that in the grand scheme of the universe you are more important than a fruit fly ?
But, that said, a mark of being more important than a lesser being would kind of be the virtue of still empathizing with that being, even if we assume there’s a hierarchy.
And considering you and I are really just elaborate transport vessels for E. Coli and a lot of fungal spores, I’m not sure we should assume there’s a hierarchy.