> "cult leaders" are, by definition, "great leaders"

Not as defined, and I did define them.

What matters is the explained distinction between the two types of leader, arguing exact semantics of individual words in the shorthand term isn’t productive.

Since the original poster I replied to used the word “amazing” (plus the context of the conversation), I used “great” to mean “Very good; excellent; wonderful; fantastic”, not “effective”.

https://en.wiktionary.org/wiki/great