Yes? What is exactly funny here? This is literally how the civilization works. I'm paid to do my work, and I pay others to do their work.

Do you grow your own food and sew your own clothes? Also, did you personally etch the microprocessor that runs your computer? The division of labor inherently means trusting others. So when I buy a bag of M4 screws, I'm not going to measure each screw with a micrometer, and I'm not taking X-ray spectra to verify their material composition.

The academic world also used to trust large publishers to take care to actually review papers. It appears that this trust is now misplaced. But I don't think it was somehow stupid.