ZD – “There is a famous Gemorah in Brachot where a talmid followed his rebbe to the most inappropriate places and when confronted the student said, This too is torah and I must learn it.”
Sorry, but that talmid had already learned EVERYTHING else he can from his rebbi, thus was still missing that particular guidance and, had no other way of obtaining that knowledge. When you will first learn all the obvious and still need to know something then we will worry about the Gadol. You can start with learning his seforim.
Though nothing wrong with looking but do not make out of it a “must”…