The internet network and it's forbears was funded largely by the US DoD (not the army specifically I don't think?) (and as a huge portion of academic computer science continues to be, btw), but most of the people involved in creating the internet and the things built on top of it, technologically and socially, including those allocating significant material resources to it's development, were not in fact military personnel (let alone in the army specifically?).
What I meant is that the people involved in building it were focused on things other than making money. (This may be hard to believe, that any human endeavor can take place except motivated by extreme profits, but it's the case). They were also not, by and large on the whole, especially motivated by military advantage, although some may have been, including some of the funders. But it was not in fact, largely, built as a national-security-focused or military/militarized network (sure, subsets of it were, there was a MILNET; it was a part of ARPANET and later separated from it, which shows that it was not the whole); nor was it built originally as a giant surveillance system for the purposes of commerce and profit (or law enforcement).