“It’s GREED to want to make money in investments?”
The old saying “if it’s too good to be true ...” comes into play — so yes, an element of greed does exist when you go with an unknown with a promise of high returns and no sound basis for it.
...ends with "it probably is". Not that it DEFINITELY is. I've found a few opportunities in the past that I pursued, even though they seemed to be much too good to be true, and they ended up wonderfully.
Have a new business opportunity that seems that way at first blush, but after tearing into it for the better part of a year turns out to simply be a woefully underserved market in which the current providers, and most of the consumers, have not a clue about the potential.
Just because it seems to good to be true does not mean it isn't!
That said, one should always check out an investment before you dive in. I'd ask to see last year's purchases and divestments. It shouldn't compromise anything "secret" to see what was invested in last year or sold...