I agree gathering can use improvements but the profits a gatherer takes aren't from the finished items the crafter produces, but from the process that enabled the crafter to rank up. I've made tens of millions selling gathering materials used to skill up on.
Most gatherers are just as bad as the crafters who don't want to pay extra for HQ materials. I'd sooner NPC my +2/3ed ores and logs than sell them for the same price as the NQ and +1 versions. But many gatherers will happily sell them for the same price, feeding these cheap crafters. If gatherers would stop giving away their crap for so little crafters would start paying the higher prices for better quality when they realise it's pay or get it yourself.