This is why when a very talented Android engineer like Sarah Haider (Twitter's Android lead) goes from Twitter to Secret, it is a big deal. There are many strong, capable iOS technical leads out there and probably a fraction thereof in Droidlandia (using Pareto's famous rule, probably 4 - 5 good iOS technical leads for every 1 good Android technical lead).
To make an app on Android look good, the responsibility lies much more on the developer than the designer. The designer on iOS can easily use IB. Not so much Android Studio or Eclipse.
At the highest levels (slightly below Jake Wharton), talented Android developers who care about the user experience and can deliver compelling, beautiful apps can name their own price.