Question: Is 'moral luck' a self-contradictory term? What does it mean? Does it exist?

Question: Can and should a person try to cultivate his own "good luck"? For example, a construction worker might leave his business card with neighbors in case they or anyone they might know happens to need his services in the future. Similarly, an investor might look to buy stock in companies with promising patents pending or forthcoming products. Is pursuing these kinds of uncertain opportunities a means of cultivating good luck?