A sudden concern for propriety

Actually, it's not funny. Betty Sutton ran her campaign on ethics and getting rid of corruption. She has a record of speaking out and passing legislation that Charlie Rangel was in fact admonished for. You omitted several important facts from her statement that explain her longstanding involvement with ethics. But since you haven't done your research to learn about her record, here is her complete statement that discusses it:

Rep. Sutton Statement on Ethics Findings Involving Representative Rangel

On the first day I was sworn into office on January 4, 2007, I was proud to help lead the Floor debate and pass groundbreaking ethics reform that ended the infamous K Street Project, banned gifts from lobbyists and put an end to lobbyist and corporate funded travel for Members of Congress. I did so because I believe we have a responsibility to protect against abuses of the public trust. On May 18, 2007, I stood united with fellow Freshmen Members of Congress to call for the creation of a nonpartisan independent ethics body that would initiate and examine ethics complaints. I did so because I believe that safeguarding the public trust requires ongoing vigilance. On March 11, 2008, I managed the Rule leading to the passage of legislation that created an independent bipartisan ethics body. The House Ethics Committee has now determined that a violation of the ban on corporate funded travel did occur and is still considering other allegations against Mr. Rangel. I think that in order to preserve the public trust, which is of the highest priority, Representative Rangel should, at this point, step aside as Chair of the Ways and Means Committee. Our nation is facing many challenges and we must put all our energy, without distraction or question, into meeting those challenges.