Earlier quoted context omitted.
If you care about the products, the emotional investment in your work might propel your income, which is the reason why you're working in the first place, so ostensibly a follow-on goal of that might be to raise your income.
This is an interesting theory. My experience has been quite the opposite, in that typically jobs that people care about and connect with on an emotional level are those which pay relatively little. Teaching, social work, caring, and so on.
The result of not caring shows over time and companies that operate like this tend to fall behind and become obsolete.