So I was truing my wheel today and I noticed no matter how much I tightened a certain spoke it wouldn't move the rim to the side. Then I realized that was the part of the rim with a dent in it, and that it was just pulling the rim downwards rather than sideways.

The rim in a non-damaged area, the zip tie is nearly in line with the edge of the rim:



The rim in the dented area, the zip tie is in the middle of the rim:



So is this rim permanently damaged? Do I need to get a new one?