Yes, fraudulent transactions where the buying party is deliberately misinformed are not voluntary, and even in the case of voluntary transactions it is possible

Yes, fraudulent transactions where the buying party is deliberately misinformed are not voluntary, and even in the case of voluntary transactions it is possible for either party or both parties to be wrong about their expectation of receiving a net positive value from the trade. Those who are routinely wrong in their expectations tend not to accumulate wealth, and thus make up a smaller proportion of economic activity over time—unless there is some external force at work transferring wealth from those who make good economic decisions to those who do not, thus increasing the economic influence of bad decision-makers.