In the 1970s she had become active in the progressive Christian political party Politieke Partij Radicalen (PPR).

Under her leadership the PPR broke its links with the PvdA and oriented itself to the more left-wing parties PSP, CPN and EVP.

When she left parliament in 1993 prime-minister Lubbers praised her by saying "you gave us (the government) a lot of trouble".

After leaving politics Beckers became involved in green NGOs: she was chairperson of the Platform Biologica, which promotes organic agriculture, from 1993 to 2004.

After that she held several positions in advisory boards, for instance of the green Triodos-bank and Research Centre of Wageningen University.

After her death she was praised for being an authentic, compassionate and idealistic politician, who stood far from the televised political theater of today.

Ironically, in 1995, she had to be evacuated from her house, because the dikes were expected to be not strong enough to hold back the river.