You're obviously (by your rate and believes) a newcomer to enterprise architecture ;) Distributed transactions are an anti-pattern even with WS-Transactions. And business rules belong to the services themselves, not to the service infrastructure.
If only SOAP wasn't the face of RPC to most people, you probably wouldn't get downvoted so hard. ;) SOAP is horrible but REST is worse. JSON-RPC is elegant and simple. I wish more people would use it.
