I slightly disagree with this, in that I think it just didn't occur to him that everyone didn't simply want what he wanted, which was for him to play the AO, and that he'd be fully embraced when he showed up. It was a massive misreading of the room, and likely will happen again, when his ban gets lifted...meaning he won't expect push-back, if he should get it. That comes from being surrounded by yes-men. I do think he cares more about his ambition that what Australians think of him, but I also think that it doesn't occur to him that people might be against him when his actions benefit his interests, but run counter to theirs.
I do agree that Novak wants to be loved, (I would say he has a rather neurotic need to be.) We'll see what happens if he gets his ban revoked and how people react to that. They might be fine, and over it, and just happy to watch the tennis. But it might feel like unfair treatment towards the privileged, and he may not get the welcome back he's expecting.
A small quibble with the second part of your statement, however. Novak was not standing by his principles when he went to Australia. He had refused to make any statement as to where he stood on the vaccine, or if he had taken it, prior to showing up in Australia, brandishing his exemption (invalid, as it turns out,) due to recent Covid. He was asked repeatedly where he stood, as soon as the AO announced they would require the vaccine for players. He consistently refused to answer, and got very tetchy about it, citing privacy issues. Which might be fine, except that he had started it, declaring early in the pandemic, and completely unbidden, that he would have to think hard about it if a vaccine were required to play on the tour. So, once it was, he got asked, and he acted surprised. IMO, he evaded the whole thing, sought to get in through a backdoor, even though every other player on the men's side was vaccinated. He only took a stand about it after the Australia debacle, and, IMO, at that point he HAD to act like it was a principled one. And it still only came about a month later. If it was such a principled position, he would have had something to say about it prior to the AO, IMO.