This is the country where people pay taxes and it's goverment invest in a loving video game company instead of fixing up it's country
It's very easy for someone who doesn't understand business and economies to see this as a bad decision.
Where do you think countries that don't have much money get more, without resulting to Government Loans that could forget them in the future? By stimulating local businesses that operate internationally, they can claim back higher levels of tax for a longer period of time while also pumping confidence and competitiveness for other local companies in industry, hopefully bringing back even more money in tax.
This isn't about making stupid decisions; it's strategic financial planning in a booming industry which they can piggyback off. In for a penny, out for a pound. Besides, it's not cash that's going to solve Turkey's issues, in the same way that throwing cash at Africa
doesn't fix much. You need to teach the man to fish, not just dump a bucket of seafood on his lap.