Netolický graduated from Masaryk University, specialising in the area of budget law and financing of territorial self-governing units.

[5] In the 2014 Czech municipal elections, Netolický defended the post of representative of the city of Česká Třebová for the ČSSD, where he succeeded thanks to preferential votes.

[15] During the 2021 Czech parliamentary election, Netolický was originally supposed to run for the ČSSD in the Pardubice region, but resigned from his position on the candidate list.

For the post of party chairman, he publicly supported his unsuccessful opponent and Minister of Foreign Affairs of the Czech Republic, Tomáš Petříček.

[17] This happened only the day after Netolický confirmed that he had met Hamáček in April and discussed his canceled trip to Moscow due to the COVID-19 pandemic.