Yeah but less direct incentive than "If my friends (and I) bet money on X, and I do X, they (and I) make money."
Not by much, plus the volume is much lower on prediction markets, so people with large pockets who happen to be in power and are capable of doing big moves like this would make more money on the oil futures.
Not by much, plus the volume is much lower on prediction markets, so people with large pockets who happen to be in power and are capable of doing big moves like this would make more money on the oil futures.