The salaries he listed were for executives, not coders.
If you pay your CEO too much more than $260k, there might be a risk that he/she start worrying about keeping the job (and the high salary) more than growing the company.
There is no really sense in your second sentence. The only way for a CEO to keep his job with VC partners, is to increase the income of his partners so he must increase the revenue of the company. It is the first goal of any CEO (even for non-profit company). If he don't, partners will kick him of his seat to put someone who cares about their investment and do his job.
If you pay your CEO too much more than $260k, there might be a risk that he/she start worrying about keeping the job (and the high salary) more than growing the company.