The last race gives 60? racing bonds so that's the most valuble for money.
But you're going to come across lots of money anyway plus you can sell your relativly-bad stuff and buy better gear. Or you can sell excess items that you don't want. e.g. Excess lightsaber colour crystals (are you really going to need 30 red crystals?) or large amounts of medpacs when you have a large amount of life-support-packs.
Can I skip this sucker without any relevant loss, or would that be regrettable etc??
Yes you can skip it - You only need money to buy certain items. You can make do with the items you find anyway and there are only a few items you will want to buy, most of them from Suvam and the "Premium Item" shop on Korriban.
Skipping won't have any impact on the story either.
If you want lots of cash then go for it (it's just a case of hitting the right boost pads), but if you're not bothered or just can't do it. No bad will come from it.
Besides, if you *really* need cash then you can get party members to make items and then you can sell them!