If it wasn't for remote access, I couldn't bill two clients at once. I joke, slightly. Plus weekends, and evenings (back when people ran second and third shifts) I could often fix things without going to their site. It's a niche example, but I could do all kinds of things from almost literally anywhere on the planet! Reboot servers, install updates, reset passwords, etc... Remote access is a godsend. Remote meetings and actually remote tech support is time saving and a blessing (if I'm there to supervise. One vendor had someone remote in to one of our clients servers and they broke the software. It was done on a weekend too, with no advanced notice. Suspicious for sure, and I believe the tech was eventually fired. It took a few hours to get them back up and running. Double edge sword)
But 'remote working' is phenomenal. I could have worked from home decades ago when I was a programmer. Instead I had to wear a suit and tie (never saw clients, which got easier over the years, but good grief). I was a cubicle 'gopher' mushroom. That work could have been done anywhere, and was by some lucky few. *sigh*