I don't know, I think you could make a reasonable case for the opposite. I think it's clear she comes from money but unless her parents are funding her lifestyle (which is certainly possible) you have to wonder how she finances what looks to be a pretty lavish lifestyle.
On the other hand while social media influencing is never as big an earner as they would like you to believe even doing an #ad for something like a car freshener regularly nets you quite a bit of money especially since he pools these ads with Curtis who will have the bigger following due to Love Island. Also he does the circuit of reality/challenge shows which pay very well. I remember it being reported Maisie Smith had the lowest pay of anyone on Celebrity SAS (which surprised me as I thought she'd be a big name for them to have) with £25,000. If AJ was paid only slightly more...say 30 thousand that's big money for 3 weeks work and I'm a Celeb would be significantly more. Also as much as people may scoff at pantomime it pays very well, some of the old time entertainers fund their whole year just by doing panto at Christmas and Easter. It's not like he leads a lavish lifestyle to blow through this money plus both he and Zara will have a lot gifted. I wouldn't be surprised if all the holidays are gifted too.