There are different definitions.
3: one having qualities (such as recklessness, aggressiveness, or independence) popularly associated with cowboys: such as
a: a reckless driver
b: a business or businessperson operating in an uncontrolled or unregulated manner
Has Fauci been reckless? Yes.
reck·less
/ˈrekləs/
Learn to pronounce
adjective
(of a person or their actions) without thinking or caring about the consequences of an action.
“reckless driving”
“My heroes have always been cowboys”