Incorrect. To make a rational decision, you consider not only how much you want and value something, you also consider how likely you are to get it. Another example: you really want to eat Mexican more than French food but you go to the French restaurant anyway. You do so because you think it is highly likely that the Mexican restaurant is closed and hence that the probability of getting the Mexican food you want is very low. You are certain that the French restaurant is open and hence that the probability of getting food there is very high.