Not at all. Bitcoins may be bought, sold and traded for products on the common market. That is not the case with RPs. You cannot use RPs to purchase goods in any store. You can with bitcoins as there are businesses out there that accept them as currency.
Bitcoins != RPs.
I am afraid that if you are attempting to get compensation for PWI virtual goods that were stolen from you, your only recourse is through PWI. If that fails, of course you certainly have the option of addressing PWI with your legal suit.
Talk to your lawyer.