In knowing the vast majority here will not agree with what I am about to say, I will give my opinions here anyway.
Sister Aimee, a world renowned evangelist, once preached against such things as makeup, jewelry, and keeping up with modern fashions. By the mid-1920s, however, her thoughts on topics such as these changed considerably. During her 1926 kidnapping trial, she was ordered to stand up and unpin her hair which reportedly "fell abundantly over her shoulders". The following year, she had her hair bobbed and dyed auburn. She began to wear makeup and jewelry, and she became more fashionable, and in turn deterred from her natural modesty. Her wardrobe was admired by the elite, and it was reported that she could now "out-dress the Hollywood stars". This isn't to mention her third marriage to a secular singer, and her eventual divorce from him.
Now, Sister's clothes remained modest (especially by today's modesty standards), they just got more expensive. Gone were her traditional white servants dresses topped with a blue cape, and in were dressier and more "glamorous" gowns. Her gradual acceptance of makeup and jewelry, however, does go against the Word. These changes in her theology alienated her from some of her strict Pentecostal and conservative/holiness colleagues. Likewise, the "loosening" of her standards allowed her to gain acceptance among mainstream Christians, and also eventually fueled the disappearance of strong outward holiness standards that remained a marker of Pentecostalism (whether Trinitarian or Oneness) for a number of decades.
In saying all of this, I would argue that Sister Aimee (despite all her good) did loose something along the way. Her "progressive" ideas about the outward holiness appearance of the Christian can be be attributed to the inability for us to be able to distinguish the sinner from the saint in churches today.