I agree with you, Fender's build quality is inconsistent and their priority appears to be profit not quality. I had only a couple of US fenders in my time, but i sold them on as other Jazz basses by other makers / brands were actually better.
I'm based in Tokyo Japan presently, and I am lucky to work with some of Japan's finest builders, including, on occasion Fujigen, the current builder or Fender Japan.
Now, here's my point, 10 or 11 years ago Fender Japan's were quite a bit better than they are now....this is not Fujigen's doing as the builders, but is rumored to be
Fender's decision [size=4]to cut costs and sell to a market that will just "lap it up" so to speak. [/size]
Specifically, the bodies are now mostly three piece not two like they used to be, the hardware is mid range Gotoh not high end like they were up to 2004. The necks do not hold out well probably due to not curing / seasoning for long enough (again a time and cost cutting exercise). Case in point; A student of mine has an MM signature made in late 2004 by Fender Japan. The neck is unstable, it loses tuning, it doesn't set up nicely and the grains look awful on the three piece body. It cost him around $1500.
Here's what i heard happened, and if this is indeed true this illustrates Fender's priorities, at least for the Japanese market.
In the late 90's Atelier Z were approached to make MM's, as were Bacchus (Deviser), and Fujigen too, all of which made excellent handmade prototypes.....but Fujigen won the bid because of higher, cheaper output capabilities due to use of NC Routers, but post 2004 their production quality went right down. [size=4]Seriously, the matching of grains is appalling in some cases and I rarely find an MIJ fender that plays nicely or sets up well unless it is of older stock.[/size]
In fact Fujigen's own brand of Jazz bass such as the FGN Neo-classic is way better than post 2004 MIJ Fenders and runs similar prices (i would thoroughly recommend them), but it doesn't have a fender headstock or logo so it doesn't sell as widely... It clearly is a case of lower budget and higher quantity equals lower quality but more profit for the brand.
It seems this sadly may be the company culture now. So much for the legacy eh [size=4] [/size]