Unfortunately its not as simple as labelling people as being greedy. Yes like many they were probably naive and somehow people seem to expect more from seemingly successful people.
However, this year has created the perfect breeding ground for people to be caught up in schemes like these. The ridiculously low REPO rate has driven interest rates to the point where one wonders if its worth leaving ones saving in the bank. Lots of talk about banks being on shaky ground as it is.
Then people start getting desperate to get the most from what they have worked so hard to save and worry that what savings they do have is devaluing every day. I get that and can sympathize with your friends.
For us back in 2010 we had to park what was left of our pensions after heavy post 2008 losses (probably lost around 40+% of our pension fund value right there. Also decided to take it out of the Pension Fund, as government were talking about nationalizing Pension Funds back then already, etc.
Come to think of it, I'm actually blaming the Government. Yes I am. Government creates all of this instability and insecurity and we all have to flounder around and be fxckxd, whatever choice we make. Fxck you South African Government!