Two wrongs do not make a right. These two women must recuse themselves if they presided over a "gay wedding" while they had knowledge that such a question of law was currently contested and pending in the US circuit of appeals: their stop being the last and final word.
They themselves said so in 2009 (see the OP for details and link)
The article in the OP is about elected judges and bias due to campaign contributions. This has nothing to do with the Supremes.
Appointed judges fill elected judges' seats all the time. The Supremes were appointed. Furthermore, rules applying to judicial officers of the lower courts with respect to decorum and maintaining impartiality in the public's eye are tenfold applied to SCOTUS as the last stop in that chain.
You fail to recognize how important it is for a US Supreme Court Justice to appear impartial. It is vital to the security of the Union. People back in the old days as today do not like the perception of arbitrary tyranny ruling over them as their last chance for Justice. They tend to get rather uppity and rebellious. With forces outside the Union today doing every single thing they can to rattle and provoke our public into dissolving (divide and conquer), this straw will crack the camel's back.
They must recuse themselves. I was utterly shocked, dumbfounded, when I saw the articles in the OP. I had a thread going for quit some time about "shadow bias" but this is beyond the pale. This is a double middle fingered **** YOU

to the Public if these two women sit on this case.