[snug]

Others have answered, but there is a tool that helps with trusting oracle data, called Chainlink ($LINK)

Chainlink uses a proof a stake (POS) concept where it calls out to a number of LINK nodes that have staked assets for liability in order to win rewards. With all of the Oracles data it goes through an algorithm, for simplicity, let's say the average of all the prices it received, gives the nodes a reputation score, on top of that it uses the reputation of the nodes to choose who ultimately fulfills the request, the number of tokens staked will also take into account. If reputation starts going negative, they could lose the tokens they have staked.