I had assumed the short was the Financial billion and the long was Astronomical but it now seems like the adoption or redundancy of one or the other is driven by caprice more than any rational application of science.
Rather like the stock market.
You wouldn't like to think someone was buying in a base more advantageous than ten whilst selling in denary.
Could it happen,who knows?
Clearly if you bought $1000000000 in base 8 and sold it for $134217728 in base 10 you would be making a loss.
If you bought the same $1000000000 with your base 12 covert trading application and sold in denary you get $5159780352,your money back and $4159780352 profit.
You could trade like this several hundred thousand times per second.
The poor beggars digging the raw materials out of the earth would probably be told they are going to work longer and for less,hmm.