I would imagine a lot of steel would be lost in fixing it outright... Though I guess slowly sharpening more on one side than the other each time it needs sharpening is the way to go? I'm just unsure which side this needs to be done to even things out down the line?
From the pic, it looks like the lock side has an even grind from heel to tip, the presentation side looks to be off. It looks like the bevel widens as it gets closer to the tip. with a sharpie and a angle finder, you can mark the edge with the sharpie. When the sharpie mark is gone, that should be your angle. The angle finder will give you an accurate angle.
I would think the lock side would be your determining side for the current angle.
Here's the other thing to consider, do you want the bevels even or do you want it to look pleasing??? It will take a while to get the blade to look pleasing because with each sharpening, you're not taking off much metal, which means it will look unpleasing for a long time.
I've got a knife that some fool decided to convex the edge and did a horrible job. It has high shoulders and the bevel was way off. I decided to do a minimal re profile with a v edge. Got the bevel straight, but it still has the ugly high shoulders which may never go away. But, it's functional not pleasing.