You can't be far from me in that case and my straw poll of uncorrected right hand dip (for left hand drive cars) lights is nearer 8 out of 10 on US spec cars. 😮
However, in around February this year, there was an update to the MoT regs allowing post 1986 models to retrofit LEDs as long as the beam pattern remained correct - generally a problem with cheap Chinese LED conversions.
I recently converted my S Type to LED dipped beams using some slightly more expensive LEDs from a reputable UK supplier and the difference (no pun intended) is night and day! Much better lighting along the road, no light coming out where it shouldn't (i temporarily forget the correct name for this) and a better beam pattern overall.
However, there was a more recent update to the MoT regs that seemed to contradict the February update - as such i'll keep the tungsten filament bulbs in case the MoT guy gets fussy on mine but i'll then expect a fail for poor beam pattern!
With filament bulbs ^^^^^ note the light scatter onto the wrong side of the road and short range of light!
Same place with the LED bulbs instead ^^^^^ note the improved range and less light scatter onto the wrong side of the road!
To sum up, i totally agree with your sentiments but if done properly with decent LED bulbs, they can give a vast improvement to safety, not only for the driver but oncoming vehicles too.