In the example, both Jupiter and the MC have the same dispositor, Venus: the relationship of Venus to Jupiter would be an important consideration; also it all depends upon whether or not Jupiter in the given chart is a functional benefic or a functional malefic: also, it is too much of a generalization to say that Jupiter always represents "luck"-actually, the Part of Fortune is a much more consistent indicator of "luck" than is Jupiter, and Mercury vies with Jupiter as a "luck" indicator.
Neptune, Uranus and Mars in constructive aspect to the MC all can be considered supportive to what the MC represents. But we would also have to consider your 11th house, which has a great deal to do with "luck", and wishes, and hopes, and gains-and whether the natal influences are supportive, ir inimical, to these. Then there is the specific Lot of Profession, and the Lot of Happiness, and the Lot of Success, each of which can provide more specific indications relative to these matters, than relying exclusively upon either house or planetary generic significators.