In electronic music in particular, mode is separate from the key of a track. With fixed key (which in EDM determines the bass) one can choose freely from different modes that set the mood of a track.
Moreover, any melody (or chord progession) can be changed from one mode into another by simple transposition by a number of semitones.
For instance, moving from major to phrygian takes plus 4 semitones. Since not every note within a scale can be transposed by exactly 4 semitones, they must be transposed by 5 or 3 semitones each, which gives different flavours. This in turn changes the feel of the melody in a predictable way.
If I got this earlier, I would't make so many tracks with random modes popping all around. For instance the latest The Real Never Dreamed, which sounds like 3 different tunes stiched together