If your bank account is hacked and your money is stolen; will you say banking is fraud, don't put money in banks?
Definitely not! There is no way that we can put a blame on banking system for such kind of activities.
I dont really think so that the ones who actually know about bitcoin will be having any kind of problem or issues to go for investing their money into bitcoin.
In fact, investing in bitcoin is really a good opportunity for them as they are actually making out huge profit by investing their money into bitcoin.