graphic designers don't really see any of this, either. It's going to be photo junkies or people working on image processing systems (either building them or using them) that have to deal with this.

But for the most part this shouldn't really matter much. A huge amount of things these days are properly color managed, so as long as the thing that wrote the profile actually, you know, wrote what it actually wanted then it'll display just fine regardless of how many different "sRGB" profiles there are floating around. We're largely past the days of just hoping that the image and the display happen to agree on roughly the same colors.