John Adams, Thomas Jefferson and James Madison would beg to differ.
Oh, no they would not, not if they saw our current situation where the Federal government intrudes in everything from you toilet to your tonsils.
Their service took place when we were a Constitutional Republic with individual States members thereof, not a Federal Monarchy with independent States mere servants thereto.
Repeal the 17th Amendment and interpret the Constitution as it was when they served and there would be no conflict of interest.
Regards