We'll finally be able to stop tying health insurance to employment in the ridiculous way that we currently do.
Skilled professionals will more often be able to make their own hours and find more variety/novelty in their work by taking jobs for a variety of customers.
And there will be so many freelancers that a solid industry for helping them connect with consumers of their services so that the hardest part of freelancing (finding work) starts to become a non-issue.
Transitions are messy, of course.
This is in general a common, elusive mistake: "We can't measure it, so it must be zero." Better to be ridiculous and say it's worth between $100 and $10,000.
Value is lower because of the consequences of being hard to measure.
Then there are actual bullshit jobs, whose value is difficult to measure because they have no value to begin with.
How do we know the value has been increased at all?
I can think of an awful lot more jobs that are pretty well defined but nonetheless can't be done in someone's living room.
The person you're responding to didn't say what you think they said.
That's the OP's exact words. Inspecting a ship hull is clearly defined, yet I cannot do it in my living room. Likewise mopping the floors at MacDonald's. Very clearly defined, yet cannot be done anywhere in the world; I have to go to the actual floor that needs mopping.
If your job is well defined, e.g. make an app or a website design, you can do it anywhere in the world. The app/design is your deliverable that anyone can see and judge.
If your job is a poorly defined "management" or "product ownership", with no real deliverable, how can your work be judged? Your job turns into convincing other people that your job is useful. Work long hours, seem busy, attend meetings, leave the office late. An epitome of the corporate environment.