If you trusted someone to manage your money only to find out 30 years later he/she had ultimately taken every penny you had and left you with nothing---it would be rather difficult for you to say "I blame myself for this", especially if this person was rather close to you.
Not even close to what we are discussing here, but if you waited 30 years to find out you were being cheated, that's indefensible also.
That's not true. If you bought because of lies, false and faked informations, spread through pumpers and lying ceos, there isdn't a difference to a faked oriental rug. Both is in the crime code, both is fraud. Btw. The reason why we have this board here!