Men in the 50's and 60's couldn't type... or spell. Even newspapers had proof readers to catch spelling mistakes... And the only women who wrote for 'the paper' wrote for the 'Women's Section'... Men 'typed' with two fingers. It was a different time.
So, relax. Spell checkers are free today - but men who can turn a million dollars into a few billion are rare beyond words...
psssst . . . you are correct . . . its not about spell checking. So, relax.