If your lead really understood that they would "immediately earn a 5x return with no risk", and that was the truth, they would be cartoonishly foolish to not take that offer. Furthermore, wouldn't that mean your company could be printing money with its results? It's hard for me to believe a rational customer wouldn't take that deal, so either they didn't understand or believe that would be the result, or you're exaggerating here for the benefit of your point.
I know it's easy to think I'm just griefing you over this, but I'm trying to make a point in good faith. There are certainly legitimate reasons to dislike the profit incentives that venture capitalists encourage, but I think you portray their impact on small companies as unrealistically bad (and perhaps your product in a more favorable light than is warranted), to the detriment of a discussion about it.
None of this is personal, mind you. Just a comment.