As it applies to 1A matters like Citizens United, the result would be that wealthy individuals could still spend a billion of their own money on whatever speech pleased them as individuals. Failing to extend this right to corporate entities would allow the government to interfere with organizations coordinating the political speech of thousands of smaller donors. This isn’t the win some people think it is.
The least precision expressed on my monthly utility bills is 1000 gallons. Usually I either get rounded down to 0 or up to 1000 Gal. Check your bill again and find out what sort of units apply to 13 and 24 – it isn’t gallons/month.