Then it was called principled defiance. Charles Krauthammer writes in the Weekly Standard:
In 1983, Representative Gerry Studds, Democrat of Massachusetts, admitted to having sex with a 17-year-old male page. He was censured by the House of Representatives. During the vote, which he was compelled by House rules to be present for, Studds turned his back on the House to show his contempt for his colleagues' reprimand. He was not expelled from the Democratic Caucus. In fact, he was his party's nominee in the next election in his district--and the next five after that--winning reelection each time. He remained in the bosom of the Democratic Caucus in the House for the next 13 years.
The reactions to Studds and Foley will be radically different because the electoral bases of their parties are likewise different. When you have asymmetrical expectations you have asymmetrical disappointments.