The fact is that Madoff died in prison only because he stole money from some of the well known and powerful people. If he had cheated ordinary people, then in all probability he would have been living in luxury in London or some of the offshore tax havens. Take the case of Vijay Mallya of India.
Why do you compare two different countries when it comes to this?
People have been continuously convicted in the US for running Ponzi schemes even if the sums were far smaller and still got 20-30 years in prison.
Maddoff was found guilty on securities, mail, wire fraud as well as perjury, and on top of that money laundering, that's why that sentence.
Here are a few fresh examples of low-level Ponzi schemes:
https://www.justice.gov/usao-ma/pr/boston-man-pleads-guilty-investment-fraud-schemehttps://www.justice.gov/usao-ma/pr/connecticut-man-pleads-guilty-ponzi-and-tax-fraud-schemehttps://www.justice.gov/usao-ma/pr/former-belmont-resident-convicted-6-million-investment-fraud-schemeThe problem is with the Indian law system, has nothing to do with Maddoff, just because things are fucked up in some counties it doesn't mean this happens all over the world.
I mean, the ones he scammed were not small fishes, and to think he could lie in front of them and kept it going is absolutely insane.
Well, the really big fishes stayed away from him, and one thing that is mentioned quite a few times in the investigations is that he was picky about his investors, he tried to build a club where he would admit only the ones that he would have no troubles lying to them, other than a few banks most of the other funds that were involved were run by people from his own Jewish community or totally inexperienced rich people so we could probably talk about medium fishes here. Probably that's why it went for so long, he was choosing carefully his victims.
The real large investment funds stayed away from him and ignored everything,
JP Morgan cut the ties with him, and later investigations showed they knew about risks years before but kept silent for different reasons.