It’s kind of a hidden fact in the movies but he did spare alot of expenses. No back up generator, no flood ditches, he did not hire the best staff, the vet on staff does not know the Triceratops is poisoned, the plant experts planted poison plants, nothing on the island is hurricane proof yet they are in a tropical area, etc etc. In the book it was much more obvious and clearly Hammond was a piece of shit on the surface.
Honestly I get frustrated when people (mostly my extended family admittedly) take from that movie the idea that the message is “dinosaurs are impossible to contain safely and we should never try to somehow recreate one”. Like, no, we can make zoos for large, fairly intelligent predators or even bigger herbivores just fine, we do it all the time with things like lions and elephants, dinosaurs arent godzilla or anything. The issue with Jurassic park was that it was run by cheapskates that wanted to get something done fast on a budget without concern for doing it right. It would be like making a movie about the Oceangate disaster and having people conclude the moral of the story was “You shouldnt want to build a submarine because humans arent meant to go down there and it will inevitably go badly” rather than “You should spend the money to build your submarine the right way”
There’s actually an art book out there about exactly this concept, a zoo built for prehistoric animals that’s actually designed and maintained properly and it’s basically just a concept art book about a mildly futuristic looking zoo featuring dinosaurs as the enclosure occupants.
Edit: found it, https://youtu.be/7iTP-afrjeY?
Drag liked this one growing up: https://en.wikipedia.org/wiki/Prehistoric_Park
Also remove your SI please