Ukraine was not poor, it is in fact richer than ever before. If you look how Ukrainians lived 30, 60 or 90 years ago, the trend is obvious, the quality of living is better. There are two problems, though:
1. They are not rich enough as they wanna be. OK, they elected Yanaukovich, he didn't fulfill his promises about life standards, he'll get out of the president room first time possible. It's not like he signed an alliance with the Devil or he's trying to sell Ukrainian land as a nuclear waste dump, so that swift reaction should be taken. You can't go around raising chaos, burning city and terrorizing people, unless you have pretty good reason for it. Just not liking the current president is simply not an excuse. Next, also had parliamentary elections in 2012 for which we have results:
http://upload.wikimedia.org/wikipedia/commons/6/6f/Ukr_elections_2012_onemandate_okruhs.png
http://upload.wikimedia.org/wikipedia/commons/6/6d/Ukr_elections_2012_multimandate_okruhs.png
So, what about the will of all the people that voted? It should be tossed down the sewer? Just because city of Kiev is in the purple zone, and majority of citizens are protesting against the party from which they lost the elections, that doesn't mean it's the majority in the whole country. Citizens of Kiev can't act like spoiled children, trying to inflict their ideas by force once they didn't do it the legal way in 2012.
2. People were demonstrating against various problems. If nazis didn't show up to spice up the things the chaos probably wouldn't broke up. Right at the moment when violence started I was excepting the Western countries to speak up against it. It didn't happen. They went on backing it up. Once nationalistic and nazi forces got aware that their actions are greeted from the West they got courage to act more freely, and started endangering people's freedom.
As a result, we have Ukraine "at stop" for months, which means it's losing money. We have the direct damage that protesters have done, which will be estimated in months to come. We also have an extra money that state is paying to the police to try to keep law and order in Ukraine. If all that didn't happen, we'd have Ukraine with some amount of money and low standard voting for Klitschko at the end of the year. This way we could have Ukraine with (same amount of money - billions of $), even lower standard, ruined city, lots of dead and again Klitschko in power.... maybe ... if riots end by then, and if whole country doesn't fall apart.