I would disagree...I expect tool tips on screwdrivers to be MUCH more reliable today, than in the 70's . Those old tools were made with no computers, no custom metallurgy, no CNC and the like. MY 1973 Klein electrician's screwdrivers have held up well and will outperform the new "Klein's" of today.
Hardware, screws included, are by and large - Garbage today. Nothing is made to spec, and in a box of 100 special screws, 20 will be bent, incomplete, flawed or some other aspect, bad. That is before it even gets used. Then the "new" hardware fails, because it is NOT what the box says it is...cheap pot metal, when the box says - stainless.
I had a lift kit, from a custom manufacturer who has been in business for decades, that had 8 custom, plated, cap screws to hold the billet to the top arm...three of the first four stripped when tightened with a 1/4" drive socket. Called them, and they said yes, they got a few boxes of "bad" ones....go get some from a local source.
As to cars lasting longer, also not true..they are made to be disposable, and that is what keeps my business booming, trying to keep them on the road, so you don't have to buy a new one. New England salt still kills thousands every month, just like they did 40 years ago.