I suppose it depends where you work.
Honestly, I wear my Amouage scents to work, at home, while lounging around, and sometimes even to bed. They are all quite strong and so one spray usually suffices for me, and each spray is only about $0.20. Wearing 1 spray of a $280 scent is no more expensive than 4 sprays of a $70 scent - so that's something to keep in mind. Anyhow, I wouldn't worry about the expense element. For work, given that Epic Man not only has epic longevity and good to excellent sillage, I would only wear one spray of this, to the chest.
In my opinion it may come across as a bit of a strange scent to those coworkers only familiar with designer offerings, but it's not so strange or outlandish that it would draw truly adverse reactions. I think you should go for it!