Although the popularity of Mathieu's genre has suffered, given the domination of rock and roll and the global lack of interest in non-English popular music during her most profitable years, she remained a popular artist in France and Europe. Many thousands of fans have met her before and after performances for autographs and well wishes over the years, and the common refrain is how well she treats her fans. She easily interacts with the public. While the Mathieu sisters are quite wealthy, they have also made their songwriters extremely wealthy. Most of the record profits go to the authors, whereas Mireille had to tour and perform concerts live and on television.