I though you wouldn't ;) As you pointed out, if we can't use text selection to pass data via PRIMARY (because Windows apps don't allow this) then it follows that we should only use CLIPBOARD. But when I select and copy text from Word, I want be able to paste it into my xterm! I find this to be a common complaint.
If xterm can't use the CLIPBOARD selection then it's broken I'm afraid. gnome-terminal for instance can use both (shift-ctrl-v pastes clipboard). I guess Konsole is similar. The solution isn't to break wine, really it's to unbreak xterm (or for you to use a different terminal emulator).
thanks -mike