Am I wrong for choosing the path that brings me personal success at the cost of "company loyalty"? The depiction of an ideal employee painted by this author sounds a lot like the Japanese Salaryman - diligent and loyal to the company. Isn't that model considered totally broken? Company loyalty as a top priority comes at the cost of ineffectiveness and lower morale. It just doesn't seem right.
If your employees are being scalped away at salary+15, maybe you're not paying them enough. If your employees are working 12 months and switching jobs, maybe you don't offer enough internal growth. If your are rejecting applications of "job hoppers", maybe you're leaving major value on the table.
In Silicon Valley, it's an employee's market. The employer has to work to retain, support, and fairly compensate your employees. Otherwise, you shouldn't be surprised when they up and leave.