You're probably right to worry about it, but there may not be much you can do if you're only looking for residency. The only other option is citizenship, a process that can be problematic and I'm not sure how a Mendoza resident would go about it (but I'm sure Steve would have some good suggestions and/or has already posted the particulars).
Of course, citizenship is a bit extreme if you're looking for a place and not sure how long you'd stay, if you're thinking more of a temporary situation here as part of a plan to spend time in different places for different lengths of time, as you mentioned "digital worker" and many have stated their desire to live in and experience different places because their work would allow it.
If you fall in love and get married you have instant ticket to residency (as long as you're not a criminal or terrorist) but that's as extreme as citizenship. I'm a digital worker from the US and ended up marrying a foreigner with residency here. We got tied down with family or we'd be floating around, ourselves, at least between here and Paraguay to.break the monotonous habits we've developed over the last 7 years or so.
There are ways to make it look like you have an income approvable as a rentista to get residency, but it's iffy and gray at the very best. I personally wouldn't suggest it unless you were really desperate.