But there are a lot of holes in Hammond's dramatic transformation from "capitalist to naturalist in just four years," as Goldblum skeptically puts it. Let's start with the fact that these other dinos apparently didn't have the built-in lysine contingency as a safeguard -- they seem to be doing just fine after four years on their own. Despite this, and the fact that Jurassic Park's meltdown resulted in many deaths, Hammond tells no one that they exist. This results in the entirely avoidable deaths of more people, some of them unaware they were sailing toward T-Rex property. Yes, he wants it to be a natural habitat or whatever, but it'd be much easier to preserve it if its existence was public knowledge. Hell, that's the whole reason he hires Goldblum in the first place; he just waited until people got maimed first.
Now go back and watch the first film, and realize that through Hammond's whole arc of regretful self-reflection, he secretly knows there's a second batch of much more dangerous dinosaurs out there. Count how many opportunities he has to bring this up and chooses not to. Then Hammond, after creating the dinosaur that ate its way through an island full of mercenaries (hired by a company he used to run), the entire crew of a boat, and San Diego, has the gall to say in the closing monologue that "Mankind should just step aside and let nature take its course." Dude, it isn't "mankind" causing these problems. It's just you.