I suppose she was twice Elizabeth Holmes's age when she was incarcerated, but otherwise she ticks every box on the 'there's no way she'll do time' checklist.
Out of curiosity, why do you think we should be more lenient on old people than we are on young? Older people tend to be more connected than young ones, on average.
She was a convenient sop. Who cares if Martha Stewart engages in a little insider trading while we've got the "financial professionals" leading our countries into economic ruin and socialized bailouts of professed "experts."
The whole point made by micaksica was that people like her (elite, politically connected, white, women, etc) wouldn't be convicted. If she was just a sop, then the counterexample is even stronger, since it means they don't even have to do anything particularly egregious to go to jail.