Samii went to the Industrial and Mineral Development Bank, first became its vice president, and then its president, and it was in this position that he was able to agree with others who were laying the groundwork for the establishment of the Central Bank, and therefore, after Porah Mayon, he assumed the presidency of the Central Bank. took an interest in art Mehdi Samii was not only a banker; he was also fond of music, painting, and cinema. He was both the originator and the promoter of the work of those involved in these arts.
Writer and filmmaker Ebrahim Golestan, recalling his 60-year friendship and acquaintance with Mehdi Samii, describes him as follows: It was not just a prominent banker. This vision often put him at odds with more politically driven figures who pushed for fast-paced spending to satisfy immediate social or political goals. Head of the Plan and Budget Organization – guiding national development plans and resource allocation.
