I thought the idea even from GDW was that Archdukes used to be figureheads, until Strephon decided to restore their powers and make them truly influential once again, in a bid to stave off the decline of the Imperium?BenGunn said:Actually the "powerful Archduke" is a GURPS-Thing.
In the GDW-variant the Archdukes are mostly figureheads.
In MT and TNE Strephon's plan backfired because one of his Archdukes tried to assassinate him and started a civil war. In the GT alternative timeline, the Civil War never happened (yet...) so the powerful archdukes are still around.
On subject, I note that in TNE, the Reformation Coalition and the Regency both look back on the old Third Imperium as seriously flawed - although one says "it was evil, we're well rid of it" while the other said "it had its problems which we've been able to correct, keeping the best elements."