Yeah, right. How do you determine the correct white balance, contrast, saturation, over or under exposure and so on without seeing the preview first?
Make sane settings while shooting so that nothing drastic is needed, and then 16-bit-per-channel Lab covers most professional needs? Worked for me even in film era. Or probably do not use a PowerMac for commercial shooting, IDK. If one can afford Eizo ColorEdge, perhaps a newer Mac is also affordable. (We are not seriously talking about color correction on a ViewSonic, are we?)
Then, if a given camera deviates in color rendering from a needed profile due to hardware specifics and not careless shooting, that deviation is deterministic, so calibrate settings once with trial and error and just apply in batch conversion.
But hey, I am not selling someone else’s RAW converter here. There is always a neat solution of not using something which does not fit the needs