That's a broad question. Generally speaking, the best way to increase wealth across a country is to increase the productive capacity of an economy. That could be done in a few ways, but not that many ways.
One way is to increase the number of people who participate in the labour force, by providing incentives to work and join the labour force. Another good way is to provide incentives to increase the capital, the machinery and equipment. Finally, there are measures that increase productivity, and these take a variety of ways, depending on the sector that you are targeting or looking at. These are generally the main ways of increasing the wealth of a nation.
As to whether we have seen that many initiatives from the government, that's an area that's probably highly sensitive politically and policy-wise, so I'll let each and every one of you be the judge of that, because different persons may have different perspectives on that. By that, I mean that some investments that are socially oriented might increase productivity in the economy, while others could be reducing the productive capacity of an economy, and not all investments are created equal.