Egk never joined the Nazi party and was exonerated in denazification tribunals held in 1947, but the trials were fraught with inaccuracies, including accounts of involvement with the Austrian resistance movement that were highly dubious.
Egk gick emellertid aldrig med i nazistpartiet och friades i denazifieringstribunalen som hölls år 1947, och försöken till anklagelser var fyllda med felaktigheter, inklusive engagemang med den österrikiska motståndsrörelsen som var mycket tveksamma.