The alternative to link sculpting is trying to tell Google directly what page is important. Google's WebmatsterTools would like you to submit a sitemap with a specific set of criteria, which allows you to give relative weighting to each page on your site. In doing this, you can help to reduce the effect of pages on your site which do not have contextual relevance (for example, your website's privacy statement) whilst elevating the value of your main product pages. This is helpful, but a well designed website architecture should produce better results.