Why early alarm systems where easy to defeat due to laziness

You see here remnants of an early Ademco
combination Burglar and Fire alarm System which was installed around 1972 at an old J&L Steel Service Center in Pa. now having been re-purposed several times over. By the then W.J. Burns International Detective agency's alarm division
It consisted of door switches foil tape to detect glass breakage and several Smoke Detectors .

Burns eventually got out of the alarm business in Pittsburgh in late 70's and sold there accounts to Holmes Protection Services here in Pittsburgh . The Holmes division here in Pittsburgh was run by two relatives so poorly and had lost so many accounts that it was sold to Westec which became Vector Security. Holmes eventually was folded into ADT and Burns was sold to Pinkerton all of which is now under Securitus .

The above key station was made by Ademco the white light when lighted indicated all circuits where closed and system could be armed the red light indicated the system was armed this key station was intended to only be used indoors as it had no tamper switch to secure a burglar from removing it from the wall and shorting the key switch terminals and there by shutting off the alarm.
But as usual you can see this one sitting on an outside wall and no tamper switch behind it. burglar simply removes it and shorts it and $1,000,000.00 in equipment sits inside ready to be stolen.
Now you would think an alarm company would be concerned about this.
and use the correct outdoor rated and tampered station.
No never going to happen you see there are too many alarm company's that hire the least common denominator they can find pay them as little as possible to install and service it and specify cheapest way to put system in so they can make the most off of you it happens today it happened back then as well . I always used tampered switch plates out side but apparently most did not. Many many systems where defeated this exact way in 70's and 80's till delay circuits allowed the keys and keypads to be installed inside eliminating the threat.
Back then to Burglar alarm bells in Tampered enclosures where used and many of them also never had there tamper circuits hooked up as well just climb up open cabinet and cut wires or knock it off the wall with a brick. cut phone lines your in.

Well your sitting there why did they not put a simple plate in to protect the customer and prevent a lawsuit to the alarm company? Well you see there in the paper work you sign when you purchase an alarm system is what is known as a Exculpatory Clause or hold harmless as its known. Even if a company does a horrible job like you see here and everything in the plant gets stolen you can not sue the alarm company because you signed away your right to sue and since alarm company knows it can not be sued why should they give a good damn what they do for you. Sorry but that is the truth too many alarm company's are only interested in thinning your wallet not protecting your property they prove it every day with the free alarms and inflated monitoring fees. They scream at there workers for even considering spending one nickel more of material than what at bare minimum is needed .
Thats why when considering a system choose very wisely.