Very very different things to be comparing.
Saturn V wasn't launching a fully reusable 100t ship on a funny reusable booster. It was launching 4 expendable stages, one of which, with a mass of only 5.5t, would reenter and land, but never be reused.
The level of acceptable risk with Saturn V (and the Gemini and Apollo programmes as a whole) was also much higher. Saturn V wouldn't be allowed to fly today -- the FAA would never grant it a licence! Lol.
Plus the design and testing approach was very different. Saturn V (and Blue Origin) had a lot of testing on the ground, with multiple rounds of testing on individual components -- the first time they were all tested together was on its first launch after many years of planning and development.
The Starship programme has done it's design and testing throughout these test campaigns. They built something and flew it, and then knew what worked and what didn't, and changed stuff, and flew it. And charged stuff and flew it. Rinse repeat. They were able to test actual conditions of launch, space flight, and reentry.
Two very different methods. The SpaceX approach is more expensive, but results in a much better and refined product. It allows for design, full integration testing, and build to run along side by side so that changes can be made throughout the programme. The end result isn't what was on the initial design because the tests feed into the design improvements in an ongoing basis.
Saturn V took 5 years to design and build (nothing reusable). New Glenn took 10 years (reusable booster, no reusable upper stage). Starship is at 14 years, has reused a booster, and test landed multiple upper stages. (Hopefully a catch and reuse soon, maybe with the next month).
All different beasts. All impressive in their own right. All different design choices and goals. All amazing engineers.