You used public benefits and commercialization in the same paragraph.
While that kind of semi symbiotic relationship can (and has been observed to) exist, it does so best in an an environment that looks different than what is described here (few large near monopolies, legislative regulations that are best navigated using wealth, a market that has inelastic bargaining qualities).
But the only way the monopoly on technology can make money is by sharing the benefits. The point of technology is to make the production of goods and services more efficient; it's not a scarce resource in itself. If a technology is not commercialized then this efficiency gain is not achieved and benefits no one. If someone commercializes it and monopolizes it but charges too high a price, people wouldn't buy it anyway, since they can always use older technology, and the monopoly also earns nothing. If transactions occur, it means both buyer and seller feel they are getting a benefit.
While that kind of semi symbiotic relationship can (and has been observed to) exist, it does so best in an an environment that looks different than what is described here (few large near monopolies, legislative regulations that are best navigated using wealth, a market that has inelastic bargaining qualities).