If you think that was out of the ordinary for a Duke, then you should consider reading some history books. The REAL Nobles were way worse. If they set foot into a Cafe and complained about the food.. you wouldn't talk back if you are attached to your Head.
There was a Train in Japan that continued its Route just for one Girl that needed that Train to get to School. They left it in Service until she graduated.
If Alicia loses out on Ash against Maika then i'm sure she would appoint Ash as Prime Minister when she gets on the Throne. That Guy is way to good in that setting to let him be.
Head Knights or "Knight Commander" are usually Nobles before their Job since Authority was hereditary. (Most Isekai are based on Merit, but we all know that Merit would do nothing in reality)
Also, it was mentioned in Chapter 18 that Itsuki is the Son of the Count that governs that City.
Had a Girl riding so hard that she broke my boner.. i ended up pissing Blood for 2 Weeks and a swelling that hurted every time i moved even a little bit.
Bottom can end pretty bad, even when it isnt forced.