In 2022, the economic and business magazine "Dienas Bizness" named Leonids Esterkins the wealthiest person in Latvia in its annual "Millionaires" ranking.

[6][7][8] In addition to his work at the bank, he invests in real estate development projects, the hotel business, shopping centers, solar energy parks, and mining ventures in various countries worldwide.

"[10] Esterkins also noted in the interview that for several years, there had been a question in Latvia's political agenda about a fundamental reform of the banking sector, which has been successfully implemented, resulting in a transformed and robust financial system in the country.

[11] He supports project financing in the fields of manufacturing, green energy, financial technology, real estate development, and agricultural innovation.

He led the formation of Rietumu Banka's art collection, including hundreds of artworks, approximately 250 of which are classical Latvian paintings by artists such as Ludolfs Liberts, Jānis Ferdinands Tīdemanis, Jānis Pauļuks, Džemma Skulme, Konrāds Ubāns, Aleksandra Beļcova, Eduards Kalniņš, Leo Svemps, Rūdolfs Pinnis, Valdis Kalnroze, Imants Vecozols, and others.

In the spring of 2023, an exhibition of works from the bank's collection, titled "Reflections of the Era," took place at the Art Museum "Rīgas Birža.