He's popular in the Western media because he treated foreign investors like kings. They're happy to trumpet the successes and sweep the uglier side under the carpet and indulge the cult of personality he built.
Singapore's geography, meanwhile, is not given nearly enough credit. It had probably the world's most strategically located deep water port and being a city state helps keep the government on its toes and avoid corruption (in stark contrast to, say, Brazil/Myanmar) :
https://www.nber.org/system/files/working_papers/w19027/w190...
This is why a lot of its success is not really replicable elsewhere.