I suspect troll thread, but taking it at face value...
There are some questionable assumptions here.
Is there really any evidence that heavier bikes are more rugged / reliable? In my view, most high quality bikes are a lot less delicate than they look, and can give you endless trouble-free miles if you maintain the consumable parts such as tires and brake pads. And a heavyweight bike can be made by combining a heavy frame with things like inferior wheels, which probably do affect durability.
Are lighter bikes even necessarily newer? I have a 22 pound bike that is on average about 35 years old, and was not cutting edge in its day.
Is this really driven by the industry brainwashing us? How would I know if I've been brainwashed?