The broad classifications are probably alright, but I wouldn't pay much attention to the specific rankings.

[Translated from German] Christian Schwarz-Schilling had been Post Minister under Helmut Kohl since 1982 and launched the German mobile phone network at the end of the 1980s. His political understanding of infrastructure can be seen in a disturbing fact: Until a few hours (!) before he was sworn in as Post Minister - Schwarz-Schilling was involved in a copper cable company. He sold his shares to Nixdorf. The company was then "one of the most important newcomers in the cable business". Contrary to most expert advice, Schwarz-Schilling pushed the extensive investment in copper cable instead of fibre optics during his term of office, in other words: politically, he acted entirely in the interests of the buyer of his shares. In any case, exactly 30 years ago, SPIEGEL called the mobile phone licensing for which Schwarz-Schilling was responsible "a festival of lobbyists".

The fact that nobody got jailed for this obvious corruption is staggering to me and German politicians dare lecture Southern Europe on corruption.