Even under optimal conditions at the flight levels, no turbine engine is anywhere near as efficient as a piston job. Basic thermodynamics.

Turbine engines are far more reliable, and produce far more power for their size and weight. They also make airplanes go faster. But they are expensive to build and maintain, in addition to burning more fuel.

Heavy industry uses large diesel/natural gas engines wherever possible...the are cheaper to maintain and more fuel effecient. However a piston engine which can work in the middle flight levels and come anywhere near jet speeds is a massive, extremely complex machine with staged turbos and intercoolers. In addition it would have to be rebuilt on a regular basis.