Unless you live in China or another poor governance country, whistleblowing is actually encouraged. It signals integrity and honesty. If the thing is indeed a fraud, it will eventually collapse. When that happens, you will have a pretty embarrassing spot in your CV. When you look back in 10-20 years, on what side do you want to be?
Another minor point:
>I'm a small investor myself, far too small to even be allowed to invest in venture capital funds. Would I want some employee somewhere to take potentially life changing risks in order to protect me from losing a percentage or two of my money? Certainly not..
Pension funds invest in VC so even if you make minimum wage, you still most likely have money invested in VCs. The longer you wait, the more of people's money (pensions, endowments, etc) will be lost in this fraud.