its a human weakness.
some people love to boost, to show off, they are bad at shutting their mouth.
not everybody have discipline.
Fauci have been doing this for more than 30 years, and he have been part of the "research" to weaponize corona virus in the 90's.

he like to shine, to feel that he has achieved something in his life, its a human thing.
that we can see in many people, but not all. those that are in the dark, behind the curtains, those are the one to be scared of.