1. The developers are volunteers. Nobody is paying them. If they dont contribute they are not being lazy, they are just doing whatever they need to do. If you want you can take their place and contribute to the community.
2. Encrypted wallet is already in the git branch and will be in the next release.
Both points are valid. However, having said this, there is a lot of open source software out there that seems to be developed much faster. Most of the open source developer love their projects and put long hours of work into them, without being payed. Call it enthusiasm, call it motivation. So one can suspect that somehow the bitcoin developers are not as motivated or enthusiastic as one would like them to be. And I think it is legitimate to ask about the reason, or at least why it appears to be so.
So I say, we should try to motivate them. As I know from myself, you can't buy enthusiasm, but money could help a little bit. That is one of the reasons I started this other thread https://bitcointalksearch.org/topic/bitcoin-bounty-website-35905. Unfortunately there is still no bitcoin bounty website out there