It's a long term goal, and one that, while Dark Matter would like to accomplish, he's not exactly going to dedicate his life to. If he does get framed and goes to the Titan's, he could at least clear his name. Additionally, if the Teen Titan's are serious about getting the Shadow Complex to justice, than Dark Matter could ask John why he thinks Jack is looking for him. And than we can do a background check for John, figure out what made him wanted Jack. And unless you plan to never come back after getting rid of Serenity, your repeated trips to take the Teen Titan's is certainly something worth investigations. Every trip is another chance to catch you and the Shadow Complex. The thing is, Dark Matter banks on the idea that Dark Matter does fail at some point; that as he makes the organization of Shadow Complex, and that he does crimes that Shadow Complex does, or will be known to doing. Right now, it seems that they have a habit of taking Titans. Narrow, yeah, but it's what we have to work with. Now, say that Dark Matter does create the Shadow Complex and he's stopped. But Titans are still being taken, or whatever pattern of theft it seems that Jack is going for. Someone has to figure it out. Dark Matter will tell them the truth; they can use whatever they want on him, and he wouldn't be lying when he says that he made the Shadow Complex and that he only made it up when he was framed for killing a Teen Titan. Someone with more resources and power than either of us and our respective organizations will want to figure this out.
Another thing is that the Teen Titan's are in on this. Dark Matter get's caught? They bail him out and he does it again and again, until the types of crimes his Shadow Complex commits are being looked into, and continue despite the fact that Dark Matter isn't active anymore. They'd know that there are others who are doing what the Shadow Complex does. They'd eventually find the actual Shadow Complex. Does Dark Matter win in the end? Likely not. But I don't know how the end is going to look, only that there is a road before me that I can travel, and walls which I can overcome.
Your Shadow Complex is a lot like Hidden Posting; we don't know anything about them because it acts on information that is only implied, not necessarily told outright. And if Dark Matter is good at anything, it's stealing things and ideas to make it his own, relying on nothing but himself to get what he needs. Once he has it, that's all that he has to worry about. He is literally
Villainous Dark Matter He could live entirely in isolation, and create anything he needs as long as there are things around him. Much like the Shadow Complex, he doesn't need to interact with people to get it. He does though, because he's aware of the advantage it provides. Heck, if this really takes off, my Shadow Complex could very well rival yours. Taking aliens, absorbing their powers, that sort of thing. If the Teen Titan's couldn't stop you, I doubt they'd be able to stop Dark Matter either. Unless you want to figure out how to topple his newly created Shadow Complex.
But hey, what do I know? I got ideas, plans maybe, but I don't know anything until it happens. But I can still try.