Road lights should have a triggering mechanism, which might act on the 1 kilmetre of road ahead. Especially remote and rural roads where there is little large wildlife, no strong winds (trees on the road), no flooding, no rockslides and similar. In Australia, and I imagine many, many other places, there are a lot of roads like that. It would reduce energy consumption and light pollution, which hurts insect biodiversity. If it is expensive to install, then it could be done when other roadworks are done. The technology already exists, pressure sensors at traffic lights or motion sensors, and would be simple to modify for this purpose.
Social support can be provided by a prison with the doors open. The security would protect the vulnerable. It would make it simpler to concentrate social support. It would provide a safe place for homeless to shower. It would be entirely ineffective at providing social support to remote & rural areas, there the tyranny of distance reigns. It could create a core for a secular community, as religious buildings are to religions. It would equalise social support somewhat, no special groups garnering greater goods, and could integrate into public transport.
There should be a government register which marks down politicians promises. If online, it could be extended to petitions. A media employee would be in regular contact with various media outlets, so that the public is regularly informed about the consistency of politicians.