Hard to tell about the "security" & "monetary" aspects of Hive.
For the security part, I guess it would depend on who really has control over the platform. I am not familiar with all the inner-mechanics of it, as it seems quite complex in nature. If it is the community of witnesses that are supported by the users/their followers, then as long as their actions are fairly "pure" and consistent/inline with the mission of the platform (I'm guessing to avoid censorship, spamming, maintaining a cordial setting, and the like) and they do not get usurped one by one (as seemingly what at least partially happened with EOS) then it should sail forward fairly smoothly for a while. After seeing what happened with that Sun fool taking over Steemit and usurping witnesses/megatokens, I was certainly glad to see that the community/witnesses were able to get out of that mess. Who knows, maybe that Sun fool was coerced (by the powers-that-shouldn't-be) into taking over the platform to silence us; or, he was just an utter idiot on his small-dick, big-ego, power trip. Take your pick.
As for the monetary part, it is hard to say. I still have no idea how the value of a Hive token or dollar gets valued. And I have yet to try to take out or "convert" it to another crypto (have you?), so I'm not sure how that would work, though I have seen a couple of services that should be able to do this. But, I think the primary reasons for people joining this community is to be with like-minded people and being heard without being censored. At least those are the reasons I am here.