Is it because she has one of the most unique voices ever? Her music is pure perfection and never gets old, even her 6 year old songs still sound amazing. No one even denies that she is the queen of pop anymore, it's so obvious. Living Legend at 25, I can't.
It's not delusion, it's just trying to avoid the reality. Radios have made songs into classics for decades, it's still the case and will continue to be. We all know who is the untouchable queen of radios all around the world.
Timeless? I don't see any of her singles having sale nowadays, there's a reason why she doesn't has a 6X Platinum single while Gaga, Katy, Adele and Ke$ha does have at least one.