It means most will or alternatively their next of kin 10 or 30 years later. The human race hasn't proved benevolently disposed without a positive social norm to abide by in the entire REST of human history.

Given the choice between honest work and preying on our fellow human being its always easier to exploit. This is why despite being proposed as a means to inspire creation copyright theoretically expires 7O years after you die and realistically never. Once someone has conceived of a way to extract value out of their fellow human beings that extraction becomes a right regardless of how it effects civilization as a whole and most of this value doesn't even flow to creators it flows to soulless intermediaries who have inserted themselves between creator and consumer. Why given the opportunity to exploit more would they NOT?