Per the Ford manuals, for my 2000 4x4, it goes like this.
1st- Bottom Joint: 35 lb/ft
2nd-Top Joint: 69 lb/ft
3rd and final- Bottom Joint: 150 lb/ft
This sequence is also correct for Moogs. Different ball joint manufacturer's may or may not have a specs different than this.
This IS important, but obviously some folks get away with doing it incorrectly. I have heard of others that had drivability issues when incorrectly torqued. Subsequent re-torquing solved their issues.
Its not like I would go back and take it apart and re-do it if I were you. I would imagine you will be fine.