Last time i checked, an "8 hour" work shift actually requires a minimum of 11 hours of spent energy, if not upwards of 13. And most of that time is filled with inevitable stress, which is a hugely detrimental health factor.
In each 24 hours, adults need a minimum of 2 REM cycles in one uninterrupted sleep session, which needs about 6+ hours to occur. 8 is recommended, for many reasons, but i'd say 9 is better (3 cycles).
So let's say someone gets the "standard" 8 hour sleep (and manages to control their environment well enough to be reliably uninterrupted). That leaves 16 hours to be awake.
Of those 16 waking hours, if 5 of 7 days, a minimum of half of that is consumed by being in a perpetually stressful environment, 1 is consumed for "lunch hour," and 2 are consumed for transit to and from work (1 hr each way is a reasonable estimate in most cases, even for local employment, due to urban traffic and typical business hours "rush hour" with every worker trying to use the same roads to cross town at the same time).
So that's now 11 of the 16 available hours, every day, being perpetually exposed to uncontrollably elevated stress. It takes most people ~2 hours to "wind down" from an "8 hour" work day (partly because it's actually ~13, including pre-departure and post-return, non-compensated parts).
So now, each person has 3 hours, maximum, of their day remaining, for 5 out of each 7 days. That doesn't include breakfast or dinner. Now we're down to ONE hour of personal time per day, contrasted by almost all of the rest of the 16 hours of daily consciousness being consumed by "the machine," and without sufficient compensation to provide for the cost of increasing the person's health, during and despite all those overwhelming and persistent detriments.
This wears people out, not to mention destroying their morale and keeping them too busy just struggling to survive, to actually make good use of that 1 remaining free hour of 5/7ths of their days. And the other 2/7ths of their days are spent trying to relax, recover, and not think about work.
What is the point of working yourself to death, in a process that has, by design, eliminated the feasibility of meaningful advancement?
If you believe continued participation in such a process will lead to "success..." you've never been there.