Among all of the Minor Arcana Court Cards, the King of Pentacles is the " General Manager " of the Universe at least this is the individual's intention. The attitude is to take charge and to be in charge.
The individual is very good at being successful,, putting ahead of anything else, the priorities of material gain, via one's organizational skills, the ability to make money, and climbing the ladder of success.
However, the warning is, that a vulnerability exists, in spite of the person's self-confidence, self-image as being powerful, and in control of their life. The higher one climbs the ladder, the further, and harder the fall.
Shortsightedness in seeing what is truly important in life, such as family life, and relationships, will hurt not only those you love, and those who love you, this will leave only loneliness, discontentment, and ultimately unhappiness, if you do not get your priorities straight. Putting material and monetary gain over relationships, will lead to disappointment, disillusion and heartache.
The warning is, we need to be careful what we wish for. Having a quality of life style, as opposed to having quantity is requires using discernment when it comes to ambition, desire for recognition, and need for material security. Power, money and our ego can corrupt. It's the choice we have to make between what is right and wrong, good and bad.
That's the bad news. The good news is, the King is mature man, at the peak of his career, successful and wealthy in a worldly position and achievement. He is a leader, a devoted husband, has the " Midas Touch ", and the gift of actualizing, and manifesting creative ideas in the world, and everything he touches turns to gold!