Balderdash. People are not used to meet a real-life polymath. And most of them ask themselves WHY do you need more than one dimension to your persona, aren't you happy with just being one thing? Why do you need onomastic when you are a professor? And why on earth do you write fiction as well? You keep stealing jobs from honest locals, you do. 😜

In other words, you're not "disparate". You're special. Although that sentence has long lost its original meaning.