While you can find some/many luxury features on non-luxury cars, it's rare to get everything you want on a car without those luxury prices (if you are buying new / lightly used, and you get outdated if you go too far out).
Let's list some of the features that modern cars have which significantly improve the utility of them to most drivers, and which are considered (by the market) to be worth 45k+
Blind spot monitors, rear/side cross traffic alert, auto-dimming mirrors, digital mirrors (for when you have tons of cargo blocking mirrors), Backup/360 Panoramic Cameras, Parking Sensors, heads up display (massive safety benefit), Satellite Radio, lane keep assist, radar cruise control, pre-collision and collision mitigation systems (active breaking), improved design / additional weight for safety in collisions, more and better airbags. Better seats, better audio system, Nicer infotainment systems with Carplay/Andriod Auto, Hybrid/PHEV/EV powertrain, better reliability (if you pay Toyota/Lexus/Honda/Acura tax), semi-autonomous driving (Tesla)
I'm forgetting a bunch of stuff, but having recently purchased a 42K car with nearly all of these features and upgrading from a life of being driven in shitty base model kias, I find the utility gained from purchasing an expensive car to be MASSIVE. Driving went from being a frustrating chore to a pleasurable experience.
The risk of death dropping by an order of magnitude is alone worth the money, let alone the massive comfort improvements.