I would not even relate this to emotion, it is sheer greed, the scammer would just basically try to create a relationship with you, but they are smart to know that is not enough, then they proceed to making you an offer, promises of you both making money together, and that is were people fall, how can you invest in a company you are not sure exists, just based on promises, that is way too easy to fall.
In my opinion the only lesson to learn here is: anything that is too good to be true, is a scam, and any offer for you to deposit some money to get a certain percentage later is a scam.