All this should make sense to most investors but sometimes investors just look for a growing dividend and that's the end of the search. And that's a mistake because without adequate earnings to cover the dividend, the company will eventually have to cut the dividend.
Back this up one more step and it becomes obvious that earnings are a direct outcome of sufficient sales and good fiduciary management. Sounds simple but earnings are a result of sales minus costs and if sales are sufficient and costs aren't controlled, earnings will suffer. And so will dividends.
All of this makes sense when you lay it out, but it's often forgotten during the fog of selecting a stock to buy. Often there are extraneous meaningless factors that influence an investors decisions but for me it's always back to the basics. If a company's sales are increasing, management is responsible and costs are controlled, earnings should be growing as well as dividends. And everyone is happy.