[oarsinsync]

Given the relation to "business lunch" in their conversation, I suspect it's down to asking 700 staff to give up their morning with their families, setting up their day with their regular morning routine, and instead spend that time at work.

I don't think he hates breakfast, I think he hates having to give up his breakfast to be at work.

[user5994461]

That doesn't explain why they hate sales lunch so much.

[oarsinsync]

Giving up your lunch break (emphasis on break) from work to carry on working is in the same ballpark.