Can someone please provide an example of when the "misuse of position or self-dealing" suspicious activity type would be selected for suspicious activity with a non-profit corporation?

If you notice numerous transactions at Victoria's Secret by the treasurer of your non-profit....?

POA using account to pay their own bills.

From the SAR reason chart in The SAR Activity Review Trends Tips & Issues, Issue 12

Misuse of Position I Self Dealing

18 U.S.C. Section
656/657- Theft,
Embezzlement, or
Misapplication of Funds

18 U.S.C. Section 644
- Banker Receiving
Unauthorized Deposit of
Public Money

18 U.S.C. Section 215
- Bank Bribery