The tyre pressure and temperature can change in seconds, I rarely look at my TPMS and if a tyre falls outside the parameters that I set it alerts me with flashing and an alarm. This allows me to make an educated decision as to what do, ie a slower leak I can slow down and get off the highway to a safe place or if it's a fast leak I can pull over before a tyre is damaged.
Tyres are all you have keeping you on the road.