Akuperma,
Who says that they were “heavily” taxed? In fact, individuals have an obligation not to burden the community. Rambam says (Hilchot Mattanot Aniim 10:18)
????? ????? ??? ????, ??????? ????, ??? ????? ???????, ??? ????? ??? ???? ?? ??????; ??? ???? ????? ?????, ??? ???? ????, ??? ????? ???????. ?????? ??? ??? ??????, ?????–????? ???????, ?????? ??????? ??????; ??? ????? ???????: ???? ???? ????? ??????? ????, ??? ???? ???, ??? ??? ????? ??? ????? ???, ???????; ???? ???? ?????.
Even captives should not be redeemed for more than their value so as not to burden the community (Yam shel Sholomo, Gittin 4:66).
Chazal certainly would not have approved of a system that rewards breaking up families and promiscuous behavior.