You fail to account for the fact that only one half of the OP's scenario was expecting a friendly go at each other. The OP never established an agreement with his attackers, he just assumed everybody flew around with RC off, or was mistaken about what that switch did.
His attackers are in no way PvP trouble makers. They were in open, where shooting at other Commanders is expected. Especially if they come across a lone Commander that resolves out as "Lawless". This issue is simply a misunderstanding of what that RC switch does, and is for.
I'll go further than you and accuse the various rabid PvP'ers here of meta-gaming Frontier in order to fundamentally change the meaning of what a star system with Law, is, because they see what 3.0 brings and don't like it one little bit.
And Frontier would be extremely naive - again - if they bowed to these demands for change.