Way to Survey-Way to make money at home, paid surveys

According to the study, the top occupations in general happiness are:

1. Clergy
Job Description: Conduct religious worship and perform spiritual functions associated with beliefs and practices of religious faith or denomination.

Very happy: 67.2%
Median salary*: $44,102

2. Firefighters
Job Description: Control and extinguish fires, protect life and property and conduct rescue efforts.

Very happy: 57.2%
Median salary: $45,553

http://hotjobs.yahoo.com/career-articles-where_do_america_s_happiest_people_work-569;_ylc=X3oDMTE5YjNiaWdhBHRtX2RtZWNoA0JpekRldiAvIFBhcnRuZXIEdG1fbG5rA1UxMTAxNzAx

Are they on the same pay range? I have always heard that special ed. teachers make more? How true is this?