Now you're wrong, and you know that. I was never even close to top 10, but I know that all it takes for top 50 is 3 weeks of 5 days/week or so, with some days taking 1-2 hrs longer if we were close to a boss.
3 weeks per tier of pretty intense gameplay. WoD will be what, almost 2 years?
Out of these few weeks, I had time to level 3 alts to full Mythic by playing the utterly huge, incomprehensible amount of...
... 2 days/week, 3 hours/evening.
A true 2nd job - 6 hours/week for 3 740+ alts, one of them at 745 cause I focused a bit more on it.
A new alt takes just 4-5 raids to get to 735+.
As for plebs, they are very important.
They also do not need tier