As part of the Star Alliance, the Demon Heart Sect obviously wouldn't be ignorant of the situation. Take the banquet Wang Meng was currently attending, for example. The people he was interacting with were all future rulers of the most powerful sects. This was a level the Demon Heart Sect could only look up to in awe. Moreover, given Wang Meng's circumstances, his relationship with Lv Yuantian had to be excellent; otherwise, the academy's dean would never have recommended him. This all indicated that Wang Meng had strong connections within the Star Alliance and was not someone an ordinary sect could afford to provoke.
This was the change brought about by status. Personal strength was now of secondary importance.
