Difference between Potentiality and Reality

Youngest Son: 'Tell me Daddy, what is the difference between 'Potentially' and 'reality'?'

Dad: 'I will show you'
Dad turns to his wife and asks her: 'Would you sleep with Robert Redford for 1 million dollars'?
Wife: 'Yes of course! I would never waste such an opportunity'!

Then Dad asks his daughter, if she would sleep with Brad Pitt for 1 Million dollars?
Daughter: 'Wow! Yes! He is my fantasy!'

So Dad turns to his elder son and asks him: 'Would you sleep with, Tom Cruise for 1 million dollars'?
Elder Son: 'Yeah! Why not? Imagine what I could do with 1 million Dollars! I would never hesitate!'

So the father turns back to his younger son saying: You see son, 'Potentially' we are sitting on 3 million dollars, but in 'Reality' we are living with 2 prostitutes and 1 gay.