Err, mobility? M1 / M2 Pro MBPs pack a serious punch... and they don't have to sacrifice battery life to do so - they smoke virtually all other laptops in terms of battery life.
I run my business from an X1 Carbon, but it's more about portability than battery life. Trains, planes, Starbucks all have power available so it's constantly plugged in and I can't remember the last time I used it on battery for more than an hour.
So, to address your question (which I would normally also ask), it is that important though this is also a somewhat narrow use case.
They also run very cool and are effectively silent even when the fan DOES eventually turn on for a sustained max load. By comparison, every Windows/Intel laptop I've had over the last decade exhibited obvious fan noise every time there was some short-lived load on the CPU - that includes several nicer business/pro grade laptops including Dell XPS, Latitudes, and a Thinkpad.
...and NONE of those other laptops came remotely close to reliably lasting 10+ hours on battery like the MBPs can/do.
Battery life matters. Maybe not to you, but it matters.
Even on trains, one must be lucky and even if lucky, it is usually one socket per pair of seats.
Laptops for work make no sense unless you're a field researcher.
Then, when we went home a couple years later because of a cyberattack, essential workers were able to log in and work with the systems because we all had laptops.
As time goes on and less and less of our data is actually sitting on laptops.