@MyNameIsX ,
‘You are incorrectly attempting to distil an extremely complex event into a simple blame game.’
It wasn’t that complex really!
There was layered complexity on top of a few simple frauds.
Knowingly lending to people who had no real assets or income and selling on these loans as if they had significant value.
Capturing the ratings agencies to go along with this deception.
And, finally, continuing to pay yourself when you know your organisation has negative net worth.
Did I see it coming? Not really, although the ECB certainly did and warned about it. However, like all good frauds, they are based on winning trust. People trusted Moodies and S&P to rate honestly, people trusted the quants and their correlation models and people trusted the big banks not to cheat them.
It was a total scandal and the result was people on middle incomes had tax raises and, when bonuses were banned, for about a year or two, mid-level traders’ base salaries went up from about £150k to about £350k, and they still whinged about ‘working for nothing’.
It was and still is a sore on the political system and, I would argue, in large part led to the disillusionment in politicians that led to Brexit and Trump.
And, as the OP said, I think it has a high chance of happening again soon, either via tech valuations or crypto.