I'm afraid it can happen all too often, most customers are looking straight down at the bottom line , sometimes to regret it later, but that doesn't help you. Unfortunately I think you must push your ideals to one side in these hard times or the loonies will undercut you .
On saying that , Crabtree are not hugely more expensive than the cheapo stuff, most C/us are around the same price, Basec cable much the same .
There is a sparks I have known for years who ,these days ,does more plumbing, decorating, tiling etc. When he does a job it will be the best job you could get ,ever ,anywhere, he has great ideals on doing a good job, every tile is lovingly placed, the shower unit will be exactly equidistant between two tiles, if the tile shading is very slightly different in the next box, he'll fetch the lot off, take them back, complain loudly and start again . He will agonise over which light fitting use, the wiring in the loft will the neatest you have ever seen ,even when covered by lagging.
You will have the best fitted bathroom in the galaxy, you will show your friends round it, they will purr over the perfection of it all .
Unfortunately my good friend does not and never has , made any money from his efforts, but won't listen , its the way he is.