I don't think anyone here thinks that any non-corrupt politician will be elected into most any office of any importance here. The problem with Cristina's policies is that they depend on too many things that Argentina doesn't have or can't always depend on (some kind of money source, for example, that they can always count on to fund their social programs) and make running businesses here difficult propositions. Anything that can actually stimulate business may (notice I use a conditional here) make some difference in the economy and therefor opportunities to people who are often in positions that yes, pay something, but don't pay worth crap. Not to mention the fact that what they earn decreases due to the incessant printing of money and manipulations that go on to try to maintain some sort of short-term viability for policies that just can't work in the current environment and probably never could in real life anyway.
In order to really make things better, people have to get off this anti-business thinking. It is hindering the development of Argentina. Governments do not create wealth. They have nothing to sell. Printing money doesn't make it so if it is being printed beyond the actual output value of the country. It is "free shit" and it is worth about what free shit is actually worth - shit.
I have little doubt Macri is as corrupt in his ways as Cristina is in hers. Anything he does will probably have minimal effect overall, though, because the fundamental problem comes from the mistaken belief that you can force everything by law to be what you want it to be. The people themselves accept the corruption, accept the fact that businesses and employees game the system while the politicians lord it over them and take their cut of what commerce comes about. The labor laws alone, in an attempt to force things to be fair, are horrible for business and employees alike. They heavily favor the employee because the rich here have tried to take advantage of the workers without a desire to share any of the wealth, which is a huge mistake. but obviously these laws haven't fixed anything and have caused serious issues - yet everyone here is certain that these laws are a good thing.
So I suppose that many don't necessarily respect Macri or think that he's an honest guy who is going to set thing aright, but yeah, he's not Cristina. He's not Menem either, no matter what scare tactics are used to portray him like that. He may turn out to screw things up royally as well, but look what we've got now anyway.
And cutting federal spending isn't wholly likely in my opinion, which is why I think he'll probably have minimal impact overall. This culture is too "in" to their free shit (without the ability to pay for it) and this has to come from the bottom up for the possibility of any real changes.
Also, don't forget that even if Macri were to win - what's the congress and supreme court going to look like? Even if he does get in, I think it likely a lot of FpV candidates will remain and Macri won't have the power that Cristina has. but that doesn't mean it would be a good idea to have someone in office that follows Cristina's policies - wouldn't it be nice to have someone in office to offset that?