"Trade practices show a similar pattern. Indus seals, used for business and administration, turned up in common homes across the city. Archaeologists did not find evidence showing rulers controlled access to these objects. Standardized weights and measures spread throughout the region as well, helping create consistent trade practices."
I've done a lot of reading on this particular subject and I think the "stateless utopia" conclusion so many researchers seem to be fishing for (Graeber etc) is more nonsensical than they let on. They didn't have monumental temples or palaces, that seems to be it.
Yet there is tons of documentary evidence "Meluhha" was engaged in a pretty sophisticated scale of commodity production (artisanal carnelian beads) and export trade with Dilmun and Sumer. Their standardized weight system was used for this trade, and they're found elsewhere in large numbers as the article says. They even had expats living in Sumer who were noted as translators (of the Indus valley seals??) This trade is where a lot of their obvious wealth probably came from, since they'd have copious silver revenue from Dilmun.
"Archaeologists did not find evidence showing rulers controlled access to these objects."
Like really, think about it. These weights were very precise. And they had to be, because "weight" was basically equivalent to "money." So there had to be a standard, and that standard had to be enforced when the weights were produced. And the weights had to remain trustworthy as they were distributed elsewhere for use in the trade. Someone was obviously "in charge" lol