If I was to judge it without comparison to others, it's definitely overpaying. My last whole bunch of posts are over-rewarded in and of themselves, so I tend to avoid posting again for at least a week to balance it out XD
But I think a lot of the real world influencer types get way more disproportionate wealth than here. Like tens of thousands of dollars for posting a photo of them holding a sock. Engagement can be really low too like, a few hundred comments. It's the derangement of ad revenue clinging on to whatever they believe is worth the best returns, then manipulating the algorithm to assure that happens in their favour.
At least everyone here gets a shot at the occasional disproportionate rewards.