Lawful good: Please don't use 8P8C for anything other than 10/100/1000BASE* compatible protocols, especially on network devices. It's confusing.
Chaotic good: Please don't use ethernet cable for anything other than ethernet compatible protocols, especially on ethernet devices.
Lawful evil: That's a valid use of Cat5 cable.
Chaotic evil: Let's talk about RS-485
True neutral: Wires are just wires and standards are just standards. In a parallel dimensions, somewhere, cat5 is used for 8-phase delta mains power.