You’re looking at this wrong. 5k with a 5% engagement rate is 100k legit followers who are all interested in yachts. Doesn’t matter how many fake followers you have if you have sufficient relevant engaged ones.
I’ve always wondered how some people manage to get their engagement rates so high. Like 20-25% of followers liking their posts, some with 50-60k followers. Or sometimes it’s a similar percentage but a normal persons account with 300-1000 followers. I guess some people are just ultra-popular, and IG is the equivalent of the high school lunchroom.
FWIW I had 300 followers or so but rarely managed to even get 10% of likes. Usually like 3% ha-ha.