Some thoughts:
1. Every new product designed should have a cost associated to it for proper disposal. Thus total cost of ownership is a "green cost" which is not just acquisition but also proper disposal.
2. Another option is to put burden of mandatory proper recycling back on the original manufacturer of the product using the same supply-chain that is used for sales. Thus consumers should be able to drop electronics at retail store -> supplier -> manufacturer, eventually leading to proper disposal.
3. Incentives from government and/or from culture for manufacturers whose products support R2R (Right to Repair). Thus encouraging reuse and refurb market.
4. Certify for and incentivize towards extending Total life of equipment. e.g. low-durability electronics carry a low-durability tax.