Anyone who is interested can view the salaries of all ALPA personnel.
The numbers are provided by ALPA to the Dept. of Labor every year.
Its kind of a pain, but here's how you do it:

Go to this govt website:
Organization Query Page (ERDS)
1. Check the "union" circle
2. Next to "union name", open the pull down list and
select ALPA
3. Click the "SUBMIT" just above the ALPA window
4. Scroll to the bottom of the ALPA accounts
5. Put a check mark next to 000-179
6. Scroll down to "Reports Specific to LM-2s,
LM-3s, T-1s"
7. Fill in the dot next to: “Officer/employee
report”
8. Click “SUBMIT”

Some of the salaries and allowances are eye-opening.