I spent a good while listening to all 3 artists and especially the Scandroid album (my favorite from that is probably Eden) you recommended, and I think the tone is usually intense and serious to my tastes. :P Definitely far from my jazzy Haywyre kind of electronic.
I much prefer when they use electric guitar over synths (like in Circle of Dust - Contagion), since it's more expressive. For the most part, the synths are kind of like a futuristic element. I think someone who handles this kind of Hi-tech style mixed with rock elements is Mr. Bill, who is definitely worth a hear regardless. I'll recommend Occultist for some similar kind of serious intense tone, I think: https://www.youtube.com/watch?v=AN22jlxAh2U
If you want lyrics, I recommend his edit of Karnivool's Themata: https://www.youtube.com/watch?v=_SCAHcJx1xo
Definitely don't limit yourself to just these, since he covers a bunch of different genres, and I don't know if I picked the right songs for you.
While I was listening to Circle of Dust's alt_human, I thought about Noisia, who has this generally intense style, so I'd just check out any of their songs, my favorite being Running Blind (https://www.youtube.com/watch?v=SXIJtC5J078), but most of them don't have lyrics if that is what you like.
I definitely don't resonate with the lyrics that much, but that's because I don't usually listen to lyrics as a whole... I'm kinda weird. My favorite lyrics are usually the kind that are inspiring and heartwarming where the background is chill trap or house music, or even something deep like Moana.
Edited at 14/5/2017(Sun)10:54:45