If it's okay with your conscience, albeit an "invincibly ignorant" one, then why not?  Surely there's no culpability in refusing to listen to Our Lord's word and His Church. It's a great "get out of jail free" card. If one's passions drive you to commit objective sin, and you know no better, everything's fine and dandy. It's only when you know you're doing wrong that sin exists. It's the Church that creates sin by informing consciences. No "received teachings" - no sin. 

To think, if only someone had told God this then poor old Adam and Eve would not have been kicked out of the Garden and we men and women wouldn't be subject to the consequences of death - temporal and spiritual. If only Our Father had listened to Lucifer.