But still, I think the natural response to a picture of a person grabbing an ancient container and dying is the stuff inside must have been valuable for them to have attached all these threats to it. At least that's the conclusion drawn by Egyptologists translating inscriptions like "the great lords of the west will reproach him [who breaks the seal] very very very very very very very very much". (I'm not joking about the number of instances of the word translated as "very"...)
I feel like if at the point we lost knowledge or technology and the ability to understand what is buried there, does the effort matter that much? Or to put it another way, if we are back in the stone age, some nuclear waste that is buried is the not biggest problem.