The problem with the Lehman case is that many people assume that these investors are demanding money back now that they have made a bad choice.
I think the issue is not so much about investing rather it is about misrepresentation.
I have heard reliable stories of how young financial planners are earning bonuses of 20 to 40k per month and they are not the top earners. Banks that tell their planners to aggressively sell. To earn these bonuses, it is aggressive selling and targeting cash cows like retirees. Think they really want to "plan" your future and "walk" with you all the way? No it's just to get you to sign on the dotted line and they get their commission. It's purely business.
Also how any big time transactions automatically gets you a visit from a planner at the bank who die die tries to get you to invest in some product. Citing how you are so stupid to not invest.
For these retirees, they are seen as golden gooses, tons of money and no where to spend it and easy to persuade.
I am sure there are ethical planners but there are also many unethical ones. Personally Im sure many people are already burned by these planners but just that their investments are still safe hence they are not affected. However for Lehman, no one expected it to collapse and Im sure no one realized how dangerous the terms and conditions were. Like 1 of the 8 banks in the list collapses, the fund turns belly up. Many were told..... there are 8 banks so why worry. One collapse still have 7 banks.... that is gross misrepresentation.
The question is whether these retirees really knew where their money were going and did the planner really tell them the whole truth.