I had to think about it for a few seconds.
It is true.
It is true of Presidents, CEOs, CFOs and CIOs.
It is true of many "VPs of ...".
It is sometimes, but rarely, true of mid-level managers.
It is never true of end-users.
The people I want to contact are sometimes known as "decision-makers", sometimes "cheque-signers", but they always are entrusted with management of their own time.
That means that they are empowered to spend 15 minutes with me, if they decide it is worthwhile.
Or to let me know they choose not to spend time with me.
It is true of all solo entrepreneurs