I get your point, but it's debatable how strong it is and will be in the coming years as the subsidy continues to decrease into irrelevance. 

Also, 21m is the magic number, as per my previous comment. Do you measure how much bitcoin you have as a fraction of 19.8m or 21m? If 21m, then there is no dilution, no inflation. 

Back to miners. They do work, they get paid. I do work, I get paid. Nobody increases supply for work.