He’s embarrassed and ashamed because he played a part in the music industry which arguably promotes negative ideas. “Devilish game” refers to the supposed evil plan (intentionnal or not, the effects are there) of the industry. Dumbing down its consumers via the ideas it promotes (quick money, anarchie sex…) destroying generation after generation.
He’s embarrassed because kids are walking around listening to his music getting the wrong impression instead of taking positives from the album, they are adopting the “fuck school” and dropping out mentality.
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