You can purchase additional insurance, much as Bitcoin exchanges with insurance will also charge higher fees, because they're not getting that insurance for free (indeed, probably substantially more expensive per "dollar", because of things like poor/poorer security, etc.).

And yes, it does. Much like a transaction on the blockchain might if you paid only $3 in mining fees. Or you could pay $30-50 and get it cleared much more quickly, just as I could pay for a wire transfer and get things done in n hour or two.