So we should just let the stars waste the enormous amounts of energy every single second while providing near-zero value to anything concious, when we could instead harvest it? For as long as humankind has existed, we wanted more and we strived to get it. That's not greed, that's a struggle towards better tomorrows. Energy in abundance has a tremendous potential and not just for more wanting and more consumption. Consumption goes hand in hand with creation and of course we will always want more. You speak like it's a bad thing that people have desires at all. I think 'more' is definitely an answer here, you're just thinking too small.