If you google the average wage for Mali, you'll find it's...

If you google the average wage for Mali, you'll find it's $1500pa for a skilled worker.
This is one reason African miners are able to keep their AISC below Australian producers.
You can get $100k pa driving a bus in Kalgoorlie!

We had 135 staff & 350-400 contractors when we took over the operation.
A company like Alkane Resources (Aust producer 45-50k oz pa) has 157 employees. (also $570m mkt cap)
Multiply that by $100k each and you're talking serious money.