It appears clear that for Abraham, his motivations were purely patriotic in that acted in the best interests of his country of birth.
He was praised in a text by his handler who told him:
“[a]lways this beautiful country have [sic] some special people
who scarify [sic] their life to protect our proud history. You always remembered. It doesn’t matter the results.”
He may have thought going down in history as a martyr (in addition to 55k$) may have made it worth the extremely high risk.