I was speaking from a US perspective, and should have indicated that.
"Pay yourself minimum wage, then you can avoid loads of tax!" is a common piece of advice I hear given, and it can be a pretty big red flag to the IRS (got this from my own CPA as well as other CPAs and other financial/tax people over the last ... too many years to count).
The issue is not so much whether you're an 'employee' or not, but in the US, 'wages' are subject to FICA tax (~13% IIRC), 'dividends' aren't. Making $150k, but paying FICA tax on only $15k, and treating the other $135k as 'dividends' is not kosher, as you're avoiding FICA tax on $135k (not really 100% true, because there's an upper cap on FICA-taxable income at the moment).
It's simply not seen as reasonable for someone who's obviously bringing in $150k to claim they only 'earned' $15k, for example. Furthermore, your future Social Security payments are based in part on how much you've paid in FICA taxes over the years, so someone trying to engage in this will find themselves with reduced SS payments down the road, as well as a probable audit and penalties.