Ideally, should scientists be immortal?

No one is immortal. But they live in the mind of the people by their great works. 

plenty of scientists ended up

in Prison just like other humans

They are working on immortality and just has theory and hypothesis. They can never achieve this in this life

If they are crypto petri-fied? A lab-our of proto-typing.

If they were immortal, there wouldn't be an incentive to replace them with the latest versions.

No. Why should should scientists be immortal? Their DNA gets tired, they have aches and plains, arthritis, an memory losses and various forms if dementia, chronic illnesses and high blood pressure, heart disease

and cancers. Scientists are not robots ir machines. Scientists really are human beings. Some times your quality of life is just not worth remaining alive. Often u intellectual curiosity has decreased ir us GONE. You are tired physically and mentally.

Oh goodness, Bloop, if this is you, put your phone away and come home. Supper is ready. If not, I'm laughing so hard right now because Bloop was talking about scientists being on the edge of solving immortality the other day.

Anyway, according to my brainiac wife, all the components are present. Someone just needs to put the pieces together.

(incidentally, my wife isn't really named Bloop, that's just her username on here.)