If the project is a scam, it would be really silly of its team to show their true identities. In most cases, they just find some pics online and use them as the images of their Chief Financial Officers or advisors, as was seen in Empire Card who used a picture of French actress Sabine de Poncins, little known outside of France, as the portrait of their proud imaginary CEO Patricia Harrison. There have even been reports of Ryan Gosling working for a project as a designer under a completely different name.
The scammers will change their tactics too, if you think that doing a google reverse can bring the pictures they will come up with a new idea, they will hire some models pay them off and then upload the pictures, if those are not popular models then who is going to identify them even if you do a good reverse search. So you really cannot identify the scammers unless the project is from a reputed team i am not going to believe any project as i had my hard lesson in the past.