Most archaelogists are public employees or employed by institutions dependent on public funds. This makes them more inclined to state intervention than the average citizen. Their paychecks literally depend on it.
> As a former archaeologist, we really don't care about random contextless artifacts.
Collectors do still value random artifacts, but a collection is much more valuable in context. A company that found such a site and could exploit it would be wise to hire archaeologists to improve the value of their property. You can sell the Crown Jewels for more than you can sell the individual jewels.
I don't intend to be dismissive in saying this, but the arguments that you're making are wildly off-base about the underlying subject. Moreover, archaeology for the sole purpose of increasing commercial value violates strong ethical norms.