Are you of the opinion that he would decide cases differently if not for those gifts? Because the general consensus is that Thomas is one of the most ideologically pure justices (whether one thinks his ideology is good or bad). I've not seen anyone identify even a single case where his vote seems to coincide with a benefactor, but not his typical ideology.
I genuinely struggle to comprehend the stance behind your comment. There are essentially no other official seats that are _not beholden to anti-bribery laws and standards.
This is like saying Pete Rose was innocent because he never threw any game he gambled on, or Trump can take gifts from Qatar because they never influenced him in any way.
I genuinely think this argument is made with dishonest motives. Truly astounding if it is not.