Dinosaurs have also been around orders of magnitude longer than humans. Behaviourally modern humans have been around for 50k years, while Dinosaurs were dominant on this planet from the T-J to C-P extinction events, so approximately 140 million years. That's three orders of magnitude. Also, even though nowadays 95% of mammalian biomass is either humans or exists to serve human needs, we still will need a long period to catch up to the legacy of the dinosaurs.