Oh! I think I didn’t understood your question, sorry.
Somewhere I read that most of the colors captured in photography have a strong tendency to fall around the sRGB color space, with a low amount of colors being out of it. I can’t remember if those fell inside AdobeRGB or where spread out on a wider area.
But, either because of my way of taking pictures, my lack of skills, or either because of my somehow old camera, I usually don’t end up with strong saturated colors in my images, so setting the rendering intent as Relative colorimetric, and being not so crazy when processing images seems to be enough. Those areas that get saturated when converting to sRGB (for display viewing) seem not to be bothersome. At least until now.
I think that if I ever face a problem with saturated colors (out of Output Profile gamut), I would play first with the Vibrance tool, tuning down a bit the saturated tones (uncoupling it from the pastel tones).
But whatever I face, I’m pretty sure I will be more comfortable with fully saturated colors than with clipped areas, just because with Relative colorimetric at least I would have a smooth gradation of tones up to fully saturated colors. I bet that in the same situation and clipped colors, I would get posterization. And I wouldn’t like that at all.
I hope that I’ve properly answered your question, now. 
P.S.: and if I have big areas of out of gamut colors, then yes, I control them with the OOG preview