My experience is that the better you have all set starting from colors, even counting lighting (daylight or tungsten, avoiding light mixing with the key light, gels, shadows highlights) the better would be the final product. RAW is such an convenient tool, specially with White Balance. Got all the information you need to make enormous corrections and still have great quality at the end. When we talk about quality, is all about how the pixels end in the final product. Does it still look like the original one we saw in RAW format or it looks all messy? Quality is one thing and artistic look is other. At the end both of them counts.