Whats wrong?
I do not see anything wrong on my way, sorry.
1. Yes, there was the autopilot in Cessna 421, but AP is now standard even in much smaller planes than C421 is. This does not mean you can not fly it without autopilot, AND: you have to learn to work and live with autopilot - it is a safety and passenger comfort feature, not the help for lazy pilots.
2. Flying in general/bussiness aviation does not mean only to keep the yokes! I undertook trainings, courses, and flew according to the company manuals, +self-planning and organizing... This is what professional flying really IS like. Many times, I was thankful for C421 experience even when I was flying B737.
3. It is very sad, but todays beginners should be ready to pay their type rating with the majority of operators, this becomes the truth with rare exceptions.