Can you receive inaccurate data from Chainlink blockchain oracles? What if the incentive to distort the data is more than the cost?
The answer to this is the same as:
Can you get inaccurate computation from Ethereum?
On a single Ethereum node, yes. A malicious, bought-off, or depreciated node could potentially say that
1+1=5. This is why Ethereum is a decentralized network, and this is where Ethereum gets its security with computation.
Chainlink is the same methodology, but with data. A single Chainlink node pulling from a single source can return inaccurate data. However, a decentralized collective pulling from multiple sources won't.