An interesting question, but can you clarify the question: Do you want only women to respond? Or, if men can respond, can the question be interpreted to mean, "if you are a man, would you prefer a big paycheck or a big cock?"
Also, in response, a preference for a big paycheck does not imply that one is materialistic. In our society, in particular, a big paycheck has a strong association with many traits: a strong provider , a higher degree of intelligence (possibly), a higher degree of education (possibly), a propensity for leadership since people in responsibility have higher salaries. Having a big cock, in contrast, represents nothing about a man's personality at all.
Of course, I'm of the mindset that the question is artificial and that one can have both, but to take oneself seriously, priority has to be given to choosing a man with an indication of possessing the traits above.