If you support the continue use of money today, then you must be willing to support the possibility that money might have the final word on our society's fate.
This is where you're making that massive leap in logic, I think. While I of course support the use of money in today's society, I'm not willing to accept that money is the say-all end-all final word. I'm not willing to support that money will decide the outcome of the human race. It's human intelligence, wisdom, and compassion, or lack of same, that will decide the outcome of our race, whether that outcome be positive or negative.